What other records share CAS 79-41-4?

CAS 79-41-4 may appear across multiple EU annex records. The CAS lookup page shows all Annex II–VI entries sharing this identifier, useful for identifying cross-annex regulatory status of the same chemical substance.

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InventoryRef 5794715/10/2010

METHACRYLIC ACID

2-Propenoic Acid, 2-Methyl-

METHACRYLIC ACID is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

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Regulatory evidence by market

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Market	Evidence status	Records	Source language
European Union	Source mapped Inventory entry; no linked annex rule	0	English and EU languages
Great Britain	Source mapped Official source mapped; ingredient rule not imported	0	English
Canada	Evidence linked Restricted Open this evidence	1	English and French
New Zealand	Source mapped Official source mapped; ingredient rule not imported	0	English
ASEAN	Source mapped Official source mapped; ingredient rule not imported	0	English and national languages
China	Source mapped Official source mapped; ingredient rule not imported	0	Chinese with selected English material
Japan	Source mapped Official source mapped; ingredient rule not imported	0	Japanese; official English translation available
South Korea	Source mapped Official source mapped; ingredient rule not imported	0	Korean with some English names
United States	Source mapped Official source mapped; ingredient rule not imported	0	English
Australia	Source mapped Official source mapped; ingredient rule not imported	0	English
Brazil	Source mapped Official source mapped; ingredient rule not imported	0	Portuguese with INCI crosswalks
India	Source mapped Official source mapped; ingredient rule not imported	0	English and Hindi
Saudi Arabia	Source mapped Official source mapped; ingredient rule not imported	0	Arabic and English

Chemical identity and properties

PubChem 2D chemical structure for CAS 79-41-4

CAS 79-41-4PubChem CID 4093

Methacrylic Acid

Methacrylic acid is an alpha,beta-unsaturated monocarboxylic acid that is acrylic acid in which the hydrogen at position 2 is substituted by a methyl group. It is functionally related to an acrylic acid. It is a conjugate acid of a methacrylate. — ChEBI

IUPAC name: 2-methylprop-2-enoic acid

Molecular formula: C4H6O2
Molecular weight: 86.09 g/mol
Exact mass: 86.036779430 Da
XLogP3: 0.9
Topological polar surface area: 37.3 Å²
Hydrogen-bond donors: 1
Hydrogen-bond acceptors: 2
Covalent units: 1
Defined stereocentres: 0

Also known as

2-Methylacrylic acidMethylacrylic acid2-Propenoic acid, 2-methyl-2-Methylpropenoic acid2-Methyl-2-propenoic acidalpha-Methylacrylic acid2-Methylenepropionic acidAcrylic acid, 2-methyl-

16 more reported names

alpha-Methacrylic acidPropionic acid, 2-methylene-Kyselina methakrylovaAcido metacrilicoAcide methacryliquePropenoic acid, 2-methylAI3-15724NSC-73931CS02G8656CHEBI:25219NSC7393Methacrylic acid (glacial)Methacrylic acid (inhibited)RefChem:6009201-204-4Methacrylsaeure

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEBI:CHEBI:25219
ChEMBL:CHEMBL1213531
EPA DTXSID:DTXSID3025542
PubMed:23121965
PubMed:23080400
PubMed:23066213
PubMed:23035481
PubMed:23032082
PubMed:23018132
PubMed:23010830
PubMed:23001514
PubMed:22996033
PubMed:22995639
PubMed:22975189
PubMed:22968474

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Inventory details for METHACRYLIC ACID

INCI name

METHACRYLIC ACID

Description

2-Propenoic Acid, 2-Methyl-

Record provenance

Inventory reference: 57947
Imported identity: METHACRYLIC ACID
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for METHACRYLIC ACID

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Key data

CAS

79-41-4

201-204-4

Restriction

—

Function

FILM FORMING: Producing (upon application) a continuous film on the skin, hair or nails.

Official EU ingredient-name evidence

The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.

#16302 · METHACRYLIC ACID

Ingredients with overlapping formulation functions

MANGO BUTTER DIMER DILINOLEYL ESTERS/DIMER DILINOLEATE COPOLYMERFILM FORMING, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

MANNANFILM FORMING

MELAMINE/RESORCINOL/ACRYLOYLDIMETHYLTAURATE/PEG-6 METHACRYLATE CROSSPOLYMERFILM FORMING

MELIA AZADIRACHTA CONDITIONED MEDIA/CULTUREANTIOXIDANT, FILM FORMING, SKIN CONDITIONING

METHACRYLIC ACID/PEG-6 METHACRYLATE/PEG-6 DIMETHACRYLATE CROSSPOLYMER.FILM FORMING

METHACRYLIC ACID/SODIUM ACRYLAMIDOMETHYL PROPANE SULFONATE COPOLYMERFILM FORMING, HAIR FIXING

METHACRYLOYL ETHYL BETAINE/ACRYLATES COPOLYMERANTISTATIC, FILM FORMING, HAIR FIXING

METHACRYLOYL GELATINBINDING, FILM FORMING, HAIR CONDITIONING

Additional official and scientific sources

11 external databases to check this identity in

Each link searches that source for this identity. What each source is, and its legal weight

ECHA CHEM / Information on chemicals PubChem PUG REST EU Safety Gate cosmetic product alerts ECHA CHEM US EPA CompTox Cosmetic Ingredient Review safety assessments FDA Global Substance Registration System ILO/WHO International Chemical Safety Cards Japan NITE-CHRIP NIOSH Pocket Guide to Chemical Hazards OECD eChemPortal

How METHACRYLIC ACID appears in the CosIng inventory

The CosIng inventory lists METHACRYLIC ACID as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.

METHACRYLIC ACID is also tagged with 1 cosmetic function in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.

Frequently asked questions

METHACRYLIC ACID is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Absence of an annex link does not guarantee unrestricted use — always verify against the current official CosIng database before formulating.

According to the EU CosIng inventory, METHACRYLIC ACID carries the following function designation(s):

FILM FORMING

CAS 79-41-4 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.

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Source note for METHACRYLIC ACID

This page reproduces the CosIng inventory entry for METHACRYLIC ACID from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.

Use this inventory page to research METHACRYLIC ACID and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

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