Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Reference substances

Reference substances

Currently viewing:
IUPAC name:
methacrylic acid

Inventory

EC number:
201-204-4
EC name:
Methacrylic acid
CAS number:
79-41-4
CAS number:
79-41-4
Synonyms
Names:
2-Propenoic acid, 2-methyl-
2-methylprop-2-enoic acid
methacrylic acid
Identifier:
IUPAC name
2- methylpropenoic acid
Identifier:
IUPAC name
2- methylpropenoic acid
Identifier:
IUPAC name
2-Methyl-2-propenoic acid
Identifier:
IUPAC name
2-Methylprop-2-enoic acid
Identifier:
IUPAC name
2-methylacrylic acid
Identifier:
IUPAC name
2-methylprop-2-enoic acid
Identifier:
IUPAC name
Methacrylic acid
Identifier:
IUPAC name
methacrylic acid
Identifier:
ChemSpider ID
3951
Identifier:
ChemSpider ID
CSID:3951
Identifier:
common name
2-Methacrylic acid
Identifier:
common name
2-methylpropenoic acid
Identifier:
common name
AMA or MAA MethAcrylic Acid
Identifier:
PubChem
CID 4093
Identifier:
other: InChl
1S/C4H6O2/c1-3(2)4(5)6/h1H2,2H3,(H,5,6)
Identifier:
other: InChl
1/C4H6O2/c1-3(2)4(5)6/h1H2,2H3,(H,5,6)
Identifier:
other: InChl
1S/C4H6O2/c1-3(2)4(5)6/h1H2,2H3,(H,5,6)
Identifier:
other: InChl
1S/C4H6O2/c1-3(2)4(5)6/h1H2,2H3,(H,5,6)
Identifier:
other: SMILES notation
C=C(C(O)=O)C
Identifier:
other: SMILES notation
C=C(C)C(O)=O
Identifier:
other: SMILES notation
CC(=C)C(=O)O
Identifier:
other: SMILES notation
CC(=C)C(O)=O
Identifier:
other: SMILES notation
CC(C(O)=O)=C
Identifier:
other: InChl
InChI=1S/C4H6O2/c1-3(2)4(5)6/h1H2,2H3,(H,5,6)
Identifier:
other: InChl
InChI=1S/C4H6O2/c1-3(2)4(5)6/h1H2,2H3,(H,5,6)
Identifier:
other: EPA Substance Registry Services (SRS)
Internal Tracking Number: 7831
2-methylprop-2-enoic acid

Molecular and structural information

Molecular formula:
C4H6O2
Molecular weight:
86.089
SMILES notation:
CC(=C)C(=O)O
InChl:
InChI=1/C4H6O2/c1-3(2)4(5)6/h1H2,2H3,(H,5,6)
Structural formula:
Chemical structure

Related substances

Identifier:
CAS number
Identity:
1338439-16-9, 562836-84-4, 463311-95-7, 2023788-71-6