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CAS 1 record

CAS 122-99-6

CAS 122-99-6 matches 1 EU annex record across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 122-99-6
CAS 122-99-6PubChem CID 31236

Phenoxyethanol

2-phenoxyethanol is an aromatic ether that is phenol substituted on oxygen by a 2-hydroxyethyl group. It has a role as an antiinfective agent and a central nervous system depressant. It is a primary alcohol, a glycol ether and an aromatic ether. It is functionally related to a phenol. — ChEBI

IUPAC name
2-phenoxyethanol
Molecular formula
C8H10O2
Molecular weight
138.16 g/mol
Exact mass
138.068079557 Da
XLogP3
1.2
Topological polar surface area
29.5 Ų
Hydrogen-bond donors
1
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

Ethylene glycol monophenyl etherPhenyl cellosolvePhenoxetholPhenoxytolEthanol, 2-phenoxy-2-Phenoxyethan-1-OlPhenoxetolEthylene glycol phenyl ether
16 more reported names
Rose etherPhenoxyethyl alcohol1-Hydroxy-2-phenoxyethaneArosolPhenylmonoglycol ether2-Phenoxyethyl alcoholDowanol EPDowanol EPHGlycol monophenyl ether2-Hydroxyethyl phenyl etherEmeressence 1160Fenyl-cellosolve2-FenoxyethanolFenylcelosolvEmery 6705beta-Hydroxyethyl phenyl ether
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Evidence from additional scientific databases

NIH PubChem PUG-View
Exact identifier match31236

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
  • 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]; H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]; H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation] Source: Regulation (EC) No 1272/2008 of the European Parliament and of the Council
  • Precautionary Statement Codes: P261, P264, P264+P265, P270, P271, P280, P301+P317, P304+P340, P305+P354+P338, P317, P319, P330, P403+P233, 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
  • Note: This chemical does not meet GHS hazard criteria for < 0.1% (1 of 4299) of reports. Source: European Chemicals Agency (ECHA)
  • Signal: Danger Source: European Chemicals Agency (ECHA)
  • GHS Hazard Statements: H302 (99.8%): Harmful if swallowed [Warning Acute toxicity, oral]; H318 (13%): Causes serious eye damage [Danger Serious eye damage/eye irritation]; H319 (87%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]; H335 (13%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation] Source: European Chemicals Agency (ECHA)
  • Precautionary Statement Codes: P261, P264, P264+P265, P270, P271, P280, P301+P317, P304+P340, P305+P351+P338, P305+P354+P338, P317, P319, P330, P337+P317, P403+P233, 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 4299 reports by companies from 38 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.; Reported as not meeting GHS hazard criteria per 1 of 4299 reports by companies.; There are 37 notifications provided by 4298 of 4299 reports by companies with hazard statement code(s).; 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: H302: Harmful if swallowed [Warning Acute toxicity, oral]; H318: Causes serious eye damage [Danger Serious eye damage/eye irritation] Source: NITE-CMC
  • Precautionary Statement Codes: P264, P264+P265, P270, P280, P301+P317, P305+P354+P338, P317, P330, and P501 (click each P-code to see the statement) Source: NITE-CMC
  • Signal: Warning Source: NITE-CMC
  • NFPA Health Rating: 3 - Materials that, under emergency conditions, can cause serious or permanent injury. Source: Hazardous Substances Data Bank (HSDB)
  • NFPA Fire Rating: 1 - Materials that must be preheated before ignition can occur. Materials require considerable preheating, under all ambient temperature conditions, before ignition and combustion can occur. 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)
  • Cosmetic Ingredient Review Finding(s): Safe in the present practices of use and concentration. Ingredient, concentration, and use information are available in documents discoverable at https://cir-reports.cir-safety.org Source: Cosmetic Ingredient Review (CIR)
  • Toxicity Summary: 2-Phenoxyethanol is a glycol ether. Glycol ethers can produce toxicity following oxidation to the corresponding aldehyde and alkoxyacetic acid by alcohol dehydrogenase (ADH; EC 1.1.1.1) and aldehyde dehydrogenase (ALDH; EC 1.2.1.3), respectively. (A15201) 2-Phenoxyethanol causes reduction of NMDA-induced membrane currents, indicating a neurotoxic potential for 2-phenoxyethanol. (A15202) Source: Toxin and Toxin Target Database (T3DB)
  • Environmental Bioconcentration: An estimated BCF of 1.5 was calculated in fish for 2-phenoxyethanol(SRC), using a log Kow of 1.16(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 15(SRC), determined from a structure estimation method(2), indicates that 2-phenoxyethanol is expected to have very high mobility in soil(SRC). Volatilization of 2-phenoxyethanol from moist soil surfaces is not expected to be an important fate process(SRC) given an estimated Henry's Law constant of 4.9X10-8 atm-cu m/mole(SRC), based upon its vapor pressure, 0.007 mm Hg at 25 °C(3), and water solubility, 2.6X10+4 mg/L(4). One biodegradation study reported theoretical 2-phenoxyethanol BODs of 2% (5-day), 71% (10-day), and 80% (20-day)(3); a theoretical 20-day BOD of 50%(3) indicates biodegrdaation may be an important environmnetal 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 15(SRC), determined from a structure estimation method(2), indicates that 2-phenoxyethanol is not expected to adsorb to suspended solids and sediment(SRC). Volatilization from water surfaces is not expected(3) based upon an estimated Henry's Law constant of 4.9X10-8 atm-cu m/mole(SRC), derived from its vapor pressure, 0.007 mm Hg at 25 °C(4), and water solubility, 2.6X10+4 mg/L(5). According to a classification scheme(6), an estimated BCF of 1.5(SRC), from its log Kow of 1.16(7) and a regression-derived equation(8), suggests the potential for bioconcentration in aquatic organisms is low. One biodegradation study reported theoretical 2-phenoxyethanol BODs of 2% (5-day), 71% (10-day), and 80% (20-day)(4); a theoretical 20-day BOD of 50% indicates a compound will largely be removed during biological waste treatment(4). 2-Phenoxyethanol is not expected to undergo hydrolysis in the environment due to the lack of functional groups that hydrolyze under environmental conditions(3). 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-phenoxyethanol, which has a estimated vapor pressure of 0.007 mm Hg at 25 °C(2), is expected to exist solely as a vapor in the ambient atmosphere. Vapor-phase 2-phenoxyethanol 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 11.8 hours(SRC), calculated from its rate constant of 3.27X10-11 cu cm/molecule-sec at 25 °C(SRC) that was derived using a structure estimation method(3). Monitoring data have shown that 2-phenoxyethanol can be removed from the atmosphere via precipitation such as snow(4). 2-Phenoxyethanol does not absorb at wavelengths >290 nm(5), and therefore is not expected to be susceptible to direct photolysis by sunlight(SRC). Source: Hazardous Substances Data Bank (HSDB)
  • Consumer Uses: Solvent; Other; Processing aids not otherwise specified; Surfactant (surface active agent); Fragrance; Cleaning agent; Preservative; Not Known or Reasonably Ascertainable; Soil amendments (fertilizers) Source: EPA Chemical Data Reporting (CDR)
  • Industry Uses: Etching agent; Preservative; Not Known or Reasonably Ascertainable; Waterproofing agent; Fragrance; Fixing agent (mordant); Cleaning agent; Plasticizer; Processing aids not otherwise specified; Surfactant (surface active agent); Other; Solvent Source: EPA Chemical Data Reporting (CDR)
  • Cosmetic Ingredient Review Link: CIR ingredient: Phenoxyethanol Source: Cosmetic Ingredient Review (CIR)
  • Sources/Uses: Used in perfumes, insect repellants, and antiseptics and to produce other organic chemicals; [Merck Index, 7257] Used as a solvent for inks, dyes, and cleaners; [HSDB] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
  • Industrial Processes with risk of exposure: Metal Degreasing [Category: Clean]; Using Disinfectants or Biocides [Category: Clean]; Textiles (Printing, Dyeing, or Finishing) [Category: Industry] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
  • Uses: Fixative for perfumes, in organic synthesis; as a bactericide in conjunction with quaternary ammonium compounds Source: Hazardous Substances Data Bank (HSDB)
  • Uses: Solvent for cellulose acetate, dyes; inks, resins; perfume fixative; bactericidal agent; organic synthesis of plasticizers, germicides, pharmaceuticals; insect repellents Source: Hazardous Substances Data Bank (HSDB)
  • Uses: MEDICATION Source: Hazardous Substances Data Bank (HSDB)
  • Uses: Use (kg; approx.) in Germany (2009): >25000; Consumption (g per capita; approx.) in Germany (2009): 0.305; Calculated removal (%): 92.1 Source: NORMAN Suspect List Exchange
  • Uses: 2-Phenoxyethanol is used in many applications such as cosmetics, vaccines and pharmaceuticals as a preservative. It is also used as a fixative for perfumes, an insect repellent, a topical antiseptic, a solvent for cellulose acetate, some dyes, inks, and resins, in preservatives, pharmaceuticals, and in organic synthesis. 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 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 122-99-6

1 total

How CAS 122-99-6 is used on this site

CAS 122-99-6 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 1 EU annex record shares this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 122-99-6 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.

Frequently asked questions

A substance identified by CAS 122-99-6 may appear in multiple EU cosmetic regulation annexes when it is subject to different conditions in different contexts. For example, a substance might be restricted under Annex III with specific conditions, and the same CAS might also appear in Annex IV as an approved colorant under separate entry conditions. Each entry must be reviewed individually.

Cross-reference the CAS number against your raw material specification sheets and CoA documents. When a CAS appears in Annex II, verify absence. When it appears in Annex III, verify that concentration limits and product type conditions are met in your formulation. All annex entries sharing this CAS number are listed above.

A CAS number is assigned by the Chemical Abstracts Service (USA) and is globally recognised. An EC number is a European Commission identifier from inventories such as EINECS, ELINCS or the NLP list. Both identifiers may appear in EU cosmetic annex entries. Some substances have both, some have only one, and some older entries may have neither.

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