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Annex II Entry 665 CMR12/08/2019

2-Methoxyethanol [1] and its acetate (2-Methoxyethyl acetate) [2]

2-Methoxyethanol [1] and its acetate (2-Methoxyethyl acetate) [2] is listed in Annex II as a prohibited substance for cosmetic products placed on the EU market.

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Prohibited substance— Annex II, EU Regulation 1223/2009
Entry: 665
CMR

Chemical identity and properties

PubChem 2D chemical structure for CAS 109-86-4
CAS 109-86-4PubChem CID 8019

2-Methoxyethanol

2-methoxyethanol is a hydroxyether that is ethanol substituted by a methoxy group at position 2. It has a role as a solvent and a protic solvent. — ChEBI

IUPAC name
2-methoxyethanol
Molecular formula
C3H8O2
Molecular weight
76.09 g/mol
Exact mass
76.052429494 Da
XLogP3
-0.8
Topological polar surface area
29.5 Ų
Hydrogen-bond donors
1
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

Methyl cellosolveEthylene glycol monomethyl etherEthanol, 2-methoxy-Methyl oxitol2-Methoxy-1-ethanolDowanol EMMethylglykolEGME
16 more reported names
Methoxyhydroxyethane3-Oxa-1-butanolMonomethyl glycolGlycol ether EMPristGlycol monomethyl ether1-Hydroxy-2-methoxyethaneJeffersol EMMECSMetil cellosolve2-MetossietanoloAmsco-Solv EE2-Methoxy-aethanolMethylcelosolvmethylcellosolveMetoksyetylowy alkohol
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Evidence from additional scientific databases

NIH PubChem PUG-View
Exact identifier match8019

Attributed physical-property, hazard, environmental and use annotations.

  • First Aid: EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.; SKIN: IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.; INHALATION: IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) shou Source: CAMEO Chemicals
  • ERG2024, Guide 127 (Ethylene glycol monomethyl ether): General First Aid:; · Call 911 or emergency medical service.; · Ensure that medical personnel are aware of the material(s) involved, take precautions to protect themselves and avoid contamination.; · Move victim to fresh air if it can be done safely.; · Administer oxygen if breathing is difficult.; · If victim is not breathing:; -- DO NOT perform mouth-to-mouth resuscitation; the victim may have ingested or inhaled the substance.; -- If equipped and pulse detected, wash face and mouth, then give artificial respiration using a proper respiratory medical device (bag-valve mask, pocket mask equipped with a one-way valve or other device).; -- If no pulse detected or no respiratory medical device available, provide continuous compressions. Conduct a pulse check every two minutes or monitor for any signs of spontaneous respirations.; · Remove and isolate contaminated clothing and shoes.; · For minor skin contact, avoid spreading material on unaffected skin.; · In case of contact with substance, remove immediately by flushing skin or eyes with running water for at least 20 minutes.; · For severe burns, immediate medical attention is required.; · Effects of exposure (inhalation, ingestion, Source: Emergency Response Guidebook (ERG)
  • First Aid: (General first aid procedures); Eye: Irrigate immediately - If this chemical contacts the eyes, immediately wash (irrigate) the eyes with large amounts of water, occasionally lifting the lower and upper lids. Get medical attention immediately.; Skin: Water flush promptly - If this chemical contacts the skin, flush the contaminated skin with water promptly. If this chemical penetrates the clothing, immediately remove the clothing and flush the skin with water promptly. If irritation persists after washing, get medical attention.; Breathing: Respiratory support; Swallow: Medical attention immediately - If this chemical has been swallowed, get medical attention immediately. Source: The National Institute for Occupational Safety and Health (NIOSH)
  • Signal: Danger Source: Regulation (EC) No 1272/2008 of the European Parliament and of the Council
  • GHS Hazard Statements: H226: Flammable liquid and vapor [Warning Flammable liquids]; H302: Harmful if swallowed [Warning Acute toxicity, oral]; H312: Harmful in contact with skin [Warning Acute toxicity, dermal]; H332: Harmful if inhaled [Warning Acute toxicity, inhalation]; H360FD: May damage fertility; May damage the unborn child [Danger Reproductive toxicity] Source: Regulation (EC) No 1272/2008 of the European Parliament and of the Council
  • Precautionary Statement Codes: P203, P210, P233, P240, P241, P242, P243, P261, P264, P270, P271, P280, P301+P317, P302+P352, P303+P361+P353, P304+P340, P317, P318, P321, P330, P362+P364, P370+P378, P403+P235, P405, and P501 (click each P-code to see the statement) Source: Regulation (EC) No 1272/2008 of the European Parliament and of the Council
  • Signal: Danger Source: European Chemicals Agency (ECHA)
  • GHS Hazard Statements: H226 (97%): Flammable liquid and vapor [Warning Flammable liquids]; H302+H312+H332 (41.2%): Harmful if swallowed, in contact with skin or if inhaled [Warning Acute toxicity, oral; acute toxicity, dermal; acute toxicity, inhalation]; H302 (96.9%): Harmful if swallowed [Warning Acute toxicity, oral]; H312 (97%): Harmful in contact with skin [Warning Acute toxicity, dermal]; H332 (94.5%): Harmful if inhaled [Warning Acute toxicity, inhalation]; H360 (93.8%): May damage fertility or the unborn child [Danger Reproductive toxicity]; H370 (10.6%): Causes damage to organs [Danger Specific target organ toxicity, single exposure]; H373 (14.1%): May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure] Source: European Chemicals Agency (ECHA)
  • Precautionary Statement Codes: P203, P210, P233, P240, P241, P242, P243, P260, P261, P264, P270, P271, P280, P301+P317, P302+P352, P303+P361+P353, P304+P340, P308+P316, P317, P318, P319, P321, P330, P362+P364, P370+P378, P403+P235, P405, and P501 (click each P-code to see the statement) Source: European Chemicals Agency (ECHA)
  • ECHA C&L Notifications Summary: Aggregated GHS information provided per 1202 reports by companies from 34 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
  • Signal: Danger Source: NITE-CMC
  • GHS Hazard Statements: H226: Flammable liquid and vapor [Warning Flammable liquids]; H312: Harmful in contact with skin [Warning Acute toxicity, dermal]; H332: Harmful if inhaled [Warning Acute toxicity, inhalation]; H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]; H336: May cause drowsiness or dizziness [Warning Specific target organ toxicity, single exposure; Narcotic effects]; H360: May damage fertility or the unborn child [Danger Reproductive toxicity]; H370: Causes damage to organs [Danger Specific target organ toxicity, single exposure]; H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure] Source: NITE-CMC
  • Precautionary Statement Codes: P203, P210, P233, P240, P241, P242, P243, P260, P261, P264, P270, P271, P280, P302+P352, P303+P361+P353, P304+P340, P308+P316, P317, P318, P319, P321, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement) Source: NITE-CMC
  • GHS Hazard Statements: H226: Flammable liquid and vapor [Warning Flammable liquids]; H312: Harmful in contact with skin [Warning Acute toxicity, dermal]; H331: Toxic if inhaled [Danger Acute toxicity, inhalation]; H360: May damage fertility or the unborn child [Danger Reproductive toxicity]; H370: Causes damage to organs [Danger Specific target organ toxicity, single exposure]; H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure] Source: NITE-CMC
  • Precautionary Statement Codes: P203, P210, P233, P240, P241, P242, P243, P260, P261, P264, P270, P271, P280, P302+P352, P303+P361+P353, P304+P340, P308+P316, P316, P317, P318, P319, P321, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement) Source: NITE-CMC
  • Toxicity Summary: IDENTIFICATION AND USE: 2-Methoxyethanol (2-ME) is a colorless liquid with ether-like odor. It is used as a solvent for cellulose acetate, natural and synthetic resins, some alcohol-soluble dyes; in nail polishes, quick-drying varnishes and enamels, and wood stains. It is also used as a as a jet fuel de-icer. HUMAN EXPOSURE AND TOXICITY: The substance is mildly irritating to the eyes and respiratory tract and may cause effects on the central nervous system, blood, bone marrow, kidneys and liver. Exposure at high levels could cause unconsciousness. The liquid defats the skin. Two non-fatal cases of poisoning by consuming 100 mL 2-ME in men aged 41 and 23 were reported. In addition to agitation and confusion, the predominant clinical features were nausea, cyanosis, hyperventilation, slight tachycardia, and metabolic acidosis. In one patient there were suggestions of moderate kidney failure. No evidence of liver damage was found and both patients recovered within 4 weeks. Chronic poisonings from vapors lead to toxic encephalopathy and evidence of bone marrow depression without hemolysis. Lung, kidney and liver changes have been observed. It was found that individuals exposed in utero Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Bioconcentration: An estimated BCF of 3 was calculated in fish for 2-methyoxyethanol(SRC), using a log Kow of -0.77(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is low(SRC). Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Fate: TERRESTRIAL FATE: Based on a classification scheme(1), an estimated Koc value of 1(SRC), determined from a log Kow of -0.77(2) and a regression-derived equation(3), indicates that 2-methoxyethanol is expected to have very high mobility in soil(SRC). Volatilization of 2-methoxyethanol from moist soil surfaces is expected to be an environmental fate process(SRC) given a Henry's Law constant of 3.3X10-7 atm-cu m/mole(4). The potential for volatilization of 2-methoxyethanol from dry soil surfaces may exist(SRC) based upon a vapor pressure of 9.5 mm Hg(5). Utilizing the Japanese MITI test, 83% of the Theoretical BOD was reached in 2 weeks(6) indicating that biodegradation is an important environmental fate process in soil(SRC). Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Fate: AQUATIC FATE: Based on a classification scheme(1), an estimated Koc value of 1(SRC), determined from a log Kow of -0.77(2) and a regression-derived equation(3), indicates that 2-methoxyethanol is not expected to adsorb to suspended solids and sediment(SRC). Volatilization from water surfaces may occur(4) based upon a Henry's Law constant of 3.3X10-7 atm-cu m/mole(5). Using this Henry's Law constant and an estimation method(3), volatilization half-lives for a model river and model lake are 97 days and 700 days, respectively(SRC). According to a classification scheme(6), an estimated BCF of 3(SRC), from its log Kow(2) and a regression-derived equation(3), suggests the potential for bioconcentration in aquatic organisms is low(SRC). Utilizing the Japanese MITI test, 83% of the Theoretical BOD was reached in 2 weeks(7) indicating that biodegradation is an important environmental fate process in water(SRC). Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Fate: ATMOSPHERIC FATE: According to a model of gas/particle partitioning of semivolatile organic compounds in the atmosphere(1), 2-methoxyethanol, which has a vapor pressure of 9.5 mm Hg at 25 °C(2), is expected to exist solely as a vapor in the ambient atmosphere. Vapor-phase 2-methoxyethanol is degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals(SRC); the half-life for this reaction in air is estimated to be 31 hours(SRC), calculated from its rate constant of 1.25X10-11 cu cm/molecule-sec at 25 °C(3). 2-Methoxyethanol does not contain chromophores that absorb at wavelengths >290 nm(4) and, therefore, is not expected to be susceptible to direct photolysis by sunlight(SRC). Source: Hazardous Substances Data Bank (HSDB)
  • Industry Uses: Solvent; Absorbent; Humectant; Fuel agents; Processing aids not otherwise specified; Adhesion/cohesion promoter; Intermediate Source: EPA Chemical Data Reporting (CDR)
  • Cosmetic Ingredient Review Link: CIR ingredient: 2-Methoxyethanol Source: Cosmetic Ingredient Review (CIR)
  • Sources/Uses: Used as a solvent for many different purposes, (e.g., varnishes, dyes, and resins) and as a jet deicing additive; [ACGIH] Used in the Asian microelectronics industry in photoresist formulations and in manufacturing copper-laminate circuit boards; [JOEM 2004;46:707-713] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
  • Industrial Processes with risk of exposure: Semiconductor Manufacturing [Category: Industry]; Painting (Solvents) [Category: Paint]; Textiles (Printing, Dyeing, or Finishing) [Category: Industry] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
  • Uses: For 2-methoxyethanol (USEPA/OPP Pesticide Code: 042202) there are 0 labels match. /SRP: Not registered for current use in the U.S., but approved pesticide uses may change periodically and so federal, state and local authorities must be consulted for currently approved uses./ Source: Hazardous Substances Data Bank (HSDB)
  • Uses: The active ingredient is no longer contained in any registered products ... "cancelled." Source: Hazardous Substances Data Bank (HSDB)
  • Uses: Solvent for nitrocellulose, ... solvent mixtures, lacquers, ... perfume fixative, ... jet fuel deicing additive. Source: Hazardous Substances Data Bank (HSDB)
  • Uses: Solvent for low viscosity cellulose acetate, natural resins, some synthetic resins and some alc-sol dyes; in dyeing leather; sealing moisture-proof cellophane; in nail polishes, quick drying varnishes and enamels, wood stains. In modified Karl Fischer reagent. Source: Hazardous Substances Data Bank (HSDB)
  • Uses: For more Uses (Complete) data for 2-METHOXYETHANOL (8 total), please visit the HSDB record page. Source: Hazardous Substances Data Bank (HSDB)
  • Uses: Methyl cellosolve, is a clear and colorless liquid at room temperature mainly used as a solvent. It is used for many purposes including varnishes, dyes, resins, printing, finishing textile, and semiconductor manufacturing. Source: Toxin and Toxin Target Database (T3DB)

Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record

Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.

Additional source coverage and match status
SourceResultChecked
NIH PubChem PUG-ViewExact match2026-08-31

A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

PubChem 2D chemical structure for CAS 110-49-6
CAS 110-49-6PubChem CID 8054

Ethylene glycol monomethyl ether acetate

Ethylene Glycol Monomethyl Ether Acetate can cause developmental toxicity and male reproductive toxicity according to The National Institute for Occupational Safety and Health (NIOSH). — California Office of Environmental Health Hazard Assessment (OEHHA)

IUPAC name
2-methoxyethyl acetate
Molecular formula
C5H10O3
Molecular weight
118.13 g/mol
Exact mass
118.062994177 Da
XLogP3
0.0
Topological polar surface area
35.5 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
3
Covalent units
1
Defined stereocentres
0

Also known as

Methyl glycol acetateMeCsac2-Methoxyethanol acetateMETHYL CELLOSOLVE ACETATEAcetic acid 2-methoxyethyl esterEthanol, 2-methoxy-, acetateMethylglykolacetatAcetyl methyl cellosolve
16 more reported names
MethylglycolacetateMethylcelosolvacetatMethyl glycol monoacetateEthylene glycol methyl ether acetateGlycol monomethyl ether acetate2-Methoxyethanol, acetate2-Metossietilacetato2-MethoxyaethylacetatEGMEAmethoxyethanol acetateMethylcellosolveacetate2-Methyoxyethylacetate2-Methoxy-ethyl acetaatbeta-Methoxyethyl acetateMethyl cellosolye acetaatAcetate de methyle glycol
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Evidence from additional scientific databases

NIH PubChem PUG-View
Exact identifier match8054

Attributed physical-property, hazard, environmental and use annotations.

  • First Aid: EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.; SKIN: IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.; INHALATION: IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) shou Source: CAMEO Chemicals
  • ERG2024, Guide 129 (Ethylene glycol monomethyl ether acetate): General First Aid:; · Call 911 or emergency medical service.; · Ensure that medical personnel are aware of the material(s) involved, take precautions to protect themselves and avoid contamination.; · Move victim to fresh air if it can be done safely.; · Administer oxygen if breathing is difficult.; · If victim is not breathing:; -- DO NOT perform mouth-to-mouth resuscitation; the victim may have ingested or inhaled the substance.; -- If equipped and pulse detected, wash face and mouth, then give artificial respiration using a proper respiratory medical device (bag-valve mask, pocket mask equipped with a one-way valve or other device).; -- If no pulse detected or no respiratory medical device available, provide continuous compressions. Conduct a pulse check every two minutes or monitor for any signs of spontaneous respirations.; · Remove and isolate contaminated clothing and shoes.; · For minor skin contact, avoid spreading material on unaffected skin.; · In case of contact with substance, remove immediately by flushing skin or eyes with running water for at least 20 minutes.; · For severe burns, immediate medical attention is required.; · Effects of exposure (inhalation, ingestion, Source: Emergency Response Guidebook (ERG)
  • First Aid: (General first aid procedures); Eye: Irrigate immediately - If this chemical contacts the eyes, immediately wash (irrigate) the eyes with large amounts of water, occasionally lifting the lower and upper lids. Get medical attention immediately.; Skin: Water flush promptly - If this chemical contacts the skin, flush the contaminated skin with water promptly. If this chemical penetrates the clothing, immediately remove the clothing and flush the skin with water promptly. If irritation persists after washing, get medical attention.; Breathing: Respiratory support; Swallow: Medical attention immediately - If this chemical has been swallowed, get medical attention immediately. Source: The National Institute for Occupational Safety and Health (NIOSH)
  • Signal: Danger Source: Regulation (EC) No 1272/2008 of the European Parliament and of the Council
  • GHS Hazard Statements: H302: Harmful if swallowed [Warning Acute toxicity, oral]; H312: Harmful in contact with skin [Warning Acute toxicity, dermal]; H332: Harmful if inhaled [Warning Acute toxicity, inhalation]; H360FD: May damage fertility; May damage the unborn child [Danger Reproductive toxicity] Source: Regulation (EC) No 1272/2008 of the European Parliament and of the Council
  • Precautionary Statement Codes: P203, P261, P264, P270, P271, P280, P301+P317, P302+P352, P304+P340, P317, P318, P321, P330, P362+P364, P405, and P501 (click each P-code to see the statement) Source: Regulation (EC) No 1272/2008 of the European Parliament and of the Council
  • Signal: Danger Source: European Chemicals Agency (ECHA)
  • GHS Hazard Statements: H226 (39.6%): Flammable liquid and vapor [Warning Flammable liquids]; H302+H312+H332 (38.6%): Harmful if swallowed, in contact with skin or if inhaled [Warning Acute toxicity, oral; acute toxicity, dermal; acute toxicity, inhalation]; H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]; H312 (100%): Harmful in contact with skin [Warning Acute toxicity, dermal]; H332 (100%): Harmful if inhaled [Warning Acute toxicity, inhalation]; H360 (99%): May damage fertility or the unborn child [Danger Reproductive toxicity] Source: European Chemicals Agency (ECHA)
  • Precautionary Statement Codes: P203, P210, P233, P240, P241, P242, P243, P261, P264, P270, P271, P280, P301+P317, P302+P352, P303+P361+P353, P304+P340, P317, P318, P321, P330, P362+P364, P370+P378, P403+P235, P405, and P501 (click each P-code to see the statement) Source: European Chemicals Agency (ECHA)
  • ECHA C&L Notifications Summary: Aggregated GHS information provided per 101 reports by companies from 8 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
  • Signal: Danger Source: NITE-CMC
  • GHS Hazard Statements: H226: Flammable liquid and vapor [Warning Flammable liquids]; H320: Causes eye irritation [Warning Serious eye damage/eye irritation]; H336: May cause drowsiness or dizziness [Warning Specific target organ toxicity, single exposure; Narcotic effects]; H360: May damage fertility or the unborn child [Danger Reproductive toxicity]; H370: Causes damage to organs [Danger Specific target organ toxicity, single exposure]; H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure] Source: NITE-CMC
  • Precautionary Statement Codes: P203, P210, P233, P240, P241, P242, P243, P260, P261, P264, P264+P265, P270, P271, P280, P303+P361+P353, P304+P340, P305+P351+P338, P308+P316, P318, P319, P321, P337+P317, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement) Source: NITE-CMC
  • GHS Hazard Statements: H226: Flammable liquid and vapor [Warning Flammable liquids]; H320: Causes eye irritation [Warning Serious eye damage/eye irritation]; H331: Toxic if inhaled [Danger Acute toxicity, inhalation]; H360: May damage fertility or the unborn child [Danger Reproductive toxicity]; H370: Causes damage to organs [Danger Specific target organ toxicity, single exposure]; H373: May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]; H402: Harmful to aquatic life [Hazardous to the aquatic environment, acute hazard]; H411: Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard] Source: NITE-CMC
  • Precautionary Statement Codes: P203, P210, P233, P240, P241, P242, P243, P260, P261, P264, P264+P265, P270, P271, P273, P280, P303+P361+P353, P304+P340, P305+P351+P338, P308+P316, P316, P318, P319, P321, P337+P317, P370+P378, P391, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement) Source: NITE-CMC
  • NFPA Health Rating: 0 - Materials that, under emergency conditions, would offer no hazard beyond that of ordinary combustible materials. Source: Hazardous Substances Data Bank (HSDB)
  • NFPA Fire Rating: 2 - Materials that must be moderately heated or exposed to relatively high ambient temperatures before ignition can occur. Materials would not under normal conditions form hazardous atmospheres with air, but under high ambient temperatures or under moderate heating could release vapor in sufficient quantities to produce hazardous atmospheres with air. Source: Hazardous Substances Data Bank (HSDB)
  • NFPA Instability Rating: 0 - Materials that in themselves are normally stable, even under fire conditions. Source: Hazardous Substances Data Bank (HSDB)
  • Toxicity Summary: ... The methyl and ethyl ethers of ethylene glycol, ie 2- methoxyethanol (2-ME) esters, 2-methoxyethyl acetate (2-MEA) and 2-ethoxyethyl acetate (2- EEA) ... are all stable, and are all miscible with (or in the case of 2-EEA very soluble in) water and miscible with a large number of organic solvents. ... The solubility of these glycol ethers in water and their relatively low vapor pressure could result in their build-up in water in the absence of degradation. However, degradation by microorganisms in soil, sewage sludge, and water appears to prevent this possibility. Atmospheric emissions resulting from the use of glycol ethers as evaporative solvents result in the greatest environmental exposure.... Effects on Organisms in the Environment: The toxicity of 2-ME and 2-EE to microorganisms and aquatic animals appears to be low. ... The glycol ether acetates (2-MEA and 2-EEA) are far more toxic to fish. The LC50 of 2-EEA for fathead minnows is 46 mg/L and that of 2-MEA for tidewater silverfish and bluegills is 45 mg/L. ... Effects on Experimental Animals and In Vitro Test Systems: Systemic toxicity: The toxicity of 2-ME and 2-EE to experimental animals has been much more widely studie Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Bioconcentration: An estimated BCF of 3.2 was calculated for methyl cellosolve acetate(SRC), using an estimated log Kow of 0.10(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests that bioconcentration in aquatic organisms is low(SRC). Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Fate: TERRESTRIAL FATE: Based on a classification scheme(1), an estimated Koc value of 30(SRC), determined from an estimated log Kow of 0.10(2) and a regression-derived equation(3), indicates that methyl cellosolve acetate is expected to have very high mobility in soil(SRC). Volatilization of methyl cellosolve acetate from moist soil surfaces is expected to be an important fate process(SRC) given an estimated Henry's Law constant of 1.1X10-6 atm-cu m/mole(SRC) derived from its vapor pressure, 7.0 mm Hg at 20 °C(4), and assigned value for water solubility of 1.0X10+6 mg/L (miscible)(5). The potential for volatilization of methyl cellosolve acetate from dry soil surfaces may exist(SRC) based on its vapor pressure(4). Using aqueous screening tests methyl cellosolve acetate reached 30 to 86.9% of its theoretical BOD over a period of 5 to 14 days(6,7), suggesting that biodegradation may be an important environmental fate process in soil(SRC). Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Fate: AQUATIC FATE: Based on a classification scheme(1), an estimated Koc value of 30(SRC), determined from an estimated log Kow of 0.10(2) and a regression-derived equation(3), indicates that methyl cellosolve acetate is not expected to adsorb to suspended solids and sediment(SRC). Volatilization from water surfaces is expected(3) based upon an estimated Henry's Law constant of 1.1X10-6 atm-cu m/mole(SRC) derived from its vapor pressure, 7.0 mm Hg(4), and assigned value for water solubility of 1.0X10+6 mg/L (miscible)(5). Using this Henry's Law constant and an estimation method(3), volatilization half-lives for a model river and model lake are 24 days and 270 days, respectively(SRC). According to a classification scheme(6), an estimated BCF of 3.2(3), from an estimated log Kow(2), and a regression derived equation(7) suggests that bioconcentration in aquatic organisms is low(SRC). Hydrolysis half-lives of 140 and 14 days at pH values of 7 and 8, respectively(10), suggest that hydrolysis is not expected to be an important process except under basic conditions(SRC). Using aqueous screening tests, methyl cellosolve acetate reached 30 to 86.9% of its theoretical BOD over a period of 5 to 14 Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Fate: ATMOSPHERIC FATE: According to a model of gas/particle partitioning of semivolatile organic compounds in the atmosphere(1), methyl cellosolve acetate, which has a measured vapor pressure of 7.0 mm Hg at 20 °C(2), is expected to exist solely as a vapor in the ambient atmosphere. Vapor-phase methyl cellosolve acetate is degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals(SRC); the half-life for this reaction in air is estimated to be about 1.1 days(SRC) calculated from its rate constant of 9.7X10-12 cu cm/molecule-sec at 25 °C(SRC)that was derived using a structure estimation method(3). Methyl cellosolve acetate does not contain chromophores that absorb at wavelengths >290 nm(4) and therefore is not expected to be susceptible to direct photolysis by sunlight(SRC). Source: Hazardous Substances Data Bank (HSDB)

Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record

Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.

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A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Record details

Chemical name

2-Methoxyethanol [1] and its acetate (2-Methoxyethyl acetate) [2]

Chemical / IUPAC name

Ethylene Glycol Monomethyl Ether; EGMME

Regulatory information

Regulation

(EC) 2009/1223

See every entry this act set

SCCS opinions

CMR

CategoryCarcinogenicMutagenicReprotoxic
Cat. 1B——✓

Key data

CAS
109-86-4 [1] / 110-49-6 [2]
EC
203-713-7 [1] / 203-772-9 [2]
Annex
II
Entry number
665

Inventory links for 2-Methoxyethanol [1] and its acetate (2-Methoxyethyl acetate) [2]

Inventory Restriction reference
Ref 84967

METHOXYETHANOL

CAS: 109-86-4 / 32718-54-0
EC: 203-713-7 / 251-174-1
Inventory Restriction reference
Ref 96276

METHOXYETHANOL

CAS: 109-86-4
EC: 203-713-7

Direct matches are limited for this record, so nearby entries from Annex II are shown as well.

Annex II 669
Nearby record in the same annex

Propiolactone

CAS: 57-57-8
EC: 200-340-1

What Annex II means for 2-Methoxyethanol [1] and its acetate (2-Methoxyethyl acetate) [2]

2-Methoxyethanol [1] and its acetate (2-Methoxyethyl acetate) [2] is listed as a prohibited substance under Annex II of EU Cosmetics Regulation 1223/2009 and must not be intentionally added. Article 17 separately addresses unintended small quantities that are technically unavoidable under good manufacturing practice and compatible with the Article 3 safety requirement.

Formulators must screen their ingredients and raw materials to ensure none contain this substance. Suppliers should provide documentation confirming absence when requested.

This record is linked to 3 CosIng inventory ingredients for name and identifier cross-reference. The page also surfaces 12 related annex records with overlapping identifiers, annex logic or naming patterns.

Compliance checklist

  • Verify this substance is absent from all raw materials and finished formulations.
  • Request absence confirmation or CoA from raw material suppliers.
  • Document the screening result in the Product Information File (PIF).
  • This substance has CMR classification. Review the CMR table above and verify current Annex II/III status before use.

Frequently asked questions

Yes. 2-Methoxyethanol [1] and its acetate (2-Methoxyethyl acetate) [2] is listed in Annex II of EU Cosmetics Regulation 1223/2009 and is prohibited as an intentionally added cosmetic ingredient. Article 17 provides a narrow exception for unintended small quantities that are technically unavoidable under good manufacturing practice, provided the product remains safe under Article 3.

CAS 109-86-4 [1] / 110-49-6 [2] is the unique numerical identifier assigned to 2-Methoxyethanol [1] and its acetate (2-Methoxyethyl acetate) [2] by the Chemical Abstracts Service. In cosmetic compliance work, the CAS number is used to cross-reference the substance across regulatory databases, raw material specifications and safety assessment reports. Multiple EU annex entries may share the same CAS number if the same substance appears under different conditions or in different annexes.

2-Methoxyethanol [1] and its acetate (2-Methoxyethyl acetate) [2] has a CMR (carcinogenic, mutagenic or reprotoxic) classification under EU CLP Regulation. Under Article 15 of EU Cosmetics Regulation 1223/2009, CMR substances of category 1A or 1B are prohibited in cosmetics unless specifically permitted. Category 2 CMR substances may be used only if assessed safe by the SCCS. Always verify current annex status and any applicable derogations before use.

Use the INCI Checker tool on this site to paste your full ingredient list (INCI) and scan it against all Annex II–VI entries. The tool highlights any ingredients that match restricted, prohibited or allergen-flagged records. This is useful for rapid compliance screening of finished product formulas or raw material declarations.
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Source note for Annex II record 2-Methoxyethanol [1] and its acetate (2-Methoxyethyl acetate) [2]

This page summarizes one Annex II record for 2-Methoxyethanol [1] and its acetate (2-Methoxyethyl acetate) [2] from public European Commission cosmetic materials and adds linked inventory or identifier matches when available.

Use this record page to review Annex II conditions for 2-Methoxyethanol [1] and its acetate (2-Methoxyethyl acetate) [2], but confirm any final regulatory decision against the current official annex wording and source files.

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