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Annex II Entry 747 CMR15/10/2010

N,N-Dimethylacetamide

N,N-Dimethylacetamide 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: 747
CMR

Chemical identity and properties

PubChem 2D chemical structure for CAS 127-19-5
CAS 127-19-5PubChem CID 31374

Dimethylacetamide

N,N-dimethylacetamide is a member of the class of acetamides that is acetamide in which the hydrogens attached to the N atom have been replaced by two methyl groups respectively. Metabolite observed in cancer metabolism. It has a role as a human metabolite. It is a member of acetamides and a monocarboxylic acid amide. It is functionally related to an acetamide. — ChEBI

IUPAC name
N,N-dimethylacetamide
Molecular formula
C4H9NO
Molecular weight
87.12 g/mol
Exact mass
87.068413911 Da
XLogP3
-0.8
Topological polar surface area
20.3 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
1
Covalent units
1
Defined stereocentres
0

Also known as

Acetamide, N,N-dimethyl-AcetdimethylamideDMAcDimethyl acetamideN,N-Dimethyl acetamideDimethylamide acetateN,N-DimethylethanamideDimethylacetone amide
16 more reported names
Acetic acid, dimethylamideAcetyldimethylamineNSC 3138Acetic acid dimethylamideCBC 510337SK 7176Dimethylamid kyseliny octoveU-5954JCV5VDB3HYNSC-3138CHEBI:84254NSC3138RefChem:6046204-826-4N.N-DimethylacetamideHallucinogen
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Evidence from additional scientific databases

NIH PubChem PUG-View
Exact identifier match31374

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
  • First Aid: Call for medical aid.; EYES: Flush with plenty of water for 15 min., lifting lids occasionally.; SKIN: Flush with plenty of water for 15 min. Remove contaminated clothing and shoes.; INGESTION: Induce vomiting. (USCG, 1999) Source: CAMEO Chemicals
  • 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 immediately - If this chemical contacts the skin, immediately flush the contaminated skin with water. If this chemical penetrates the clothing, immediately remove the clothing and flush the skin with water. Get medical attention promptly.; 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: H312: Harmful in contact with skin [Warning Acute toxicity, dermal]; H332: Harmful if inhaled [Warning Acute toxicity, inhalation]; H360D ***: 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, P271, P280, P302+P352, P304+P340, P317, P318, P321, 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: H312+H332 (13.2%): Harmful in contact with skin or if inhaled [Warning Acute toxicity, dermal; acute toxicity, inhalation]; H312 (99.4%): Harmful in contact with skin [Warning Acute toxicity, dermal]; H319 (35.5%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]; H332 (96.5%): Harmful if inhaled [Warning Acute toxicity, inhalation]; H360 (91.5%): May damage fertility or the unborn child [Danger Reproductive toxicity]; H360D (14.1%): May damage the unborn child [Danger Reproductive toxicity] Source: European Chemicals Agency (ECHA)
  • Precautionary Statement Codes: P203, P261, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P317, P318, P321, P337+P317, P362+P364, 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 1024 reports by companies from 35 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: H227: Combustible liquid [Warning Flammable liquids]; H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]; H331: Toxic if inhaled [Danger Acute toxicity, inhalation]; H336: May cause drowsiness or dizziness [Warning Specific target organ toxicity, single exposure; Narcotic effects]; H350: May cause cancer [Danger Carcinogenicity]; 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, P260, P261, P264, P264+P265, P270, P271, P280, P304+P340, P305+P351+P338, P308+P316, P316, P318, P319, P321, P337+P317, P370+P378, P403, P403+P233, P405, and P501 (click each P-code to see the statement) Source: NITE-CMC
  • GHS Hazard Statements: H350: May cause cancer [Danger Carcinogenicity] Source: NITE-CMC
  • Precautionary Statement Codes: P203, P280, P318, P405, and P501 (click each P-code to see the statement) Source: NITE-CMC
  • NFPA Health Rating: 2 - Materials that, under emergency conditions, can cause temporary incapacitation or residual injury. 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)
  • Environmental Bioconcentration: An estimated BCF of 3 was calculated for N,N-dimethylacetamide(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 9(SRC), determined from a log Kow of -0.77(2) and a regression-derived equation(3), indicates that N,N-dimethylacetamide is expected to have very high mobility in soil(SRC). Volatilization of N,N-dimethylacetamide from moist soil surfaces is not expected to be an important fate process(SRC) given a Henry's Law constant of 1.31X10-8 atm-cu m/mole(4). The potential for volatilization of N,N-dimethylacetamide from dry soil surfaces may exist(SRC) based upon a vapor pressure of 2 mm Hg(5). N,N-Dimethylacetamide is expected to be biodegradable in soil based on aqueous screening tests(6,7). Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Fate: AQUATIC FATE: Based on a classification scheme(1), an estimated Koc value of 9(SRC), determined from a log Kow of -0.77(2) and a regression-derived equation(3), indicates that N,N- dimethylacetamide is not expected to adsorb to suspended solids and sediment(SRC). Volatilization from water surfaces is not expected(3) based upon a Henry's Law constant of 1.31X10-8 atm-cu m/mole(4). According to a classification scheme(5), an estimated BCF of 3(SRC), from its log Kow(2) and a regression-derived equation(6), suggests the potential for bioconcentration in aquatic organisms is low(SRC). N,N-Dimethylacetamide, present at 100 mg/l reached 28% of its theoretical BOD in 4 weeks using an activated sludge inoculum at 30 mg/l and the Japanese MITI test(7). N,N-Dimethylacetamide, present at 30 mg/l, reached 80% of its theoretical BOD in 4 weeks using an activated sludge inoculum at 100 mg/l and the Japanese MITI test(7). In other studies, N,N-dimethylacetamide, present at 400 mg/l, reached 96% of its theoretical TOC in 5 days using industrial activated sludge(8). These results from laboratory studies suggest that N,N-dimethylacetamide will biodegrade in the aquatic environment(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), N,N-dimethylacetamide, which has a vapor pressure of 2 mm Hg at 25 °C(2), is expected to exist solely as a vapor in the ambient atmosphere(SRC). Vapor-phase N,N-dimethylacetamide is degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals(SRC); the half-life for this reaction in air is 28 hours(SRC), calculated from its rate constant of 1.36X10-11 cu cm/molecule-sec at 25 °C(3). Source: Hazardous Substances Data Bank (HSDB)
  • Industry Uses: Not Known or Reasonably Ascertainable; Soil amendments (fertilizers); Laboratory chemicals; Intermediate; Binder; Solvent; Fuel agents; Semiconductor and photovoltaic agent Source: EPA Chemical Data Reporting (CDR)

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.

Record details

Chemical name

N,N-Dimethylacetamide

Regulatory information

Regulation

(EC) 2009/1223

See every entry this act set

SCCS opinions

CMR

CategoryCarcinogenicMutagenicReprotoxic
Cat. 1B——✓
C=>5%

Key data

CAS
127-19-5
EC
204-826-4
Annex
II
Entry number
747

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

Annex II 744
Nearby record in the same annex

Formamide

CAS: 75-12-7
EC: 200-842-0
Annex II 742
Nearby record in the same annex

Thioacetamide

CAS: 62-55-5
EC: 200-541-4
Annex II 740
Nearby record in the same annex

Flusilazole

CAS: 85509-19-9
EC: 617-717-5
Annex II 753
Nearby record in the same annex

Sulfallate

CAS: 95-06-7
EC: 202-388-9

What Annex II means for N,N-Dimethylacetamide

N,N-Dimethylacetamide 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.

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. N,N-Dimethylacetamide 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 127-19-5 is the unique numerical identifier assigned to N,N-Dimethylacetamide 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.

N,N-Dimethylacetamide 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 N,N-Dimethylacetamide

This page summarizes one Annex II record for N,N-Dimethylacetamide 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 N,N-Dimethylacetamide, but confirm any final regulatory decision against the current official annex wording and source files.

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