Methacrylic acid

C4H6O2CAS 79-41-486.09 g/mol

OOH
AlkeneCarboxylic acid

Properties

Molecular formula
C4H6O2
Molar mass
86.09 g/mol
Exact mass
86.0368 Da
Density
1.0153 g/mL (at 20 °C)
Melting point
16 °C
Boiling point
163 °C
pKa
4.65
Flash point
67.2 °C (closed cup)
Water solubility
90 g/L (25 °C)
logP
0.65Crippen estimate
Polar surface area
37.3 Ų
H-bond donors / acceptors
1 / 1
Rotatable bonds
1

Hazards

Danger
Corrosive (GHS05)Irritant (GHS07)

Harmonised EU classification (CLP Annex VI, index 607-088-00-5), via PubChem.

Precautionary statements

P260, P264, P270, P280, P301+P317, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P330, P362+P364, P363, P405, P501

Identifiers

CAS number
79-41-4
SMILES
C=C(C)C(=O)O
InChIKey
CERQOIWHTDAKMF-UHFFFAOYSA-N
InChI
InChI=1S/C4H6O2/c1-3(2)4(5)6/h1H2,2H3,(H,5,6)

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Type any one amount. The others follow from the molar mass and density.

Names and synonyms

17 names · show all
  • 2-Propenoic acid, 2-methyl-
  • 2-Methyl-2-propenoic acid
  • α-Methylacrylic acid
  • Methylacrylic acid
  • 2-Methylacrylic acid
  • α-Methacrylic acid
  • GE 110
  • Loctite 3298
  • Norsocryl MAA
  • NSC 7393
  • Light ester A
  • Acryester MAA
  • MAA
  • GE 100
  • Isobutenic acid
  • Methacrylate
  • CX 192

Work with Methacrylic acid

Stereoisomers, salts and isotopologues

The same compound in another form: other stereochemistry, a salt or hydrate, the free acid or base, or an isotope-labelled version.

Similar compounds

Tanimoto similarity of circular fingerprints over the whole catalogue.

Same formula

Elsewhere