Acetonitrile

C2H3NCAS 75-05-841.05 g/mol

N
Nitrile

Properties

Molecular formula
C2H3N
Molar mass
41.05 g/mol
Exact mass
41.0265 Da
Density
0.7875 g/mL (at 15 °C)
Melting point
−45 °C
Boiling point
81.6 °C
pKa
-4.3 (conjugate acid)
Flash point
2 °C (closed cup)
Water solubility
miscible
logP
0.53Crippen estimate
Polar surface area
23.8 Ų
H-bond donors / acceptors
0 / 1
Rotatable bonds
0

Hazards

Danger
Flammable (GHS02)Irritant (GHS07)

Harmonised EU classification (CLP Annex VI, index 608-001-00-3), via PubChem.

Precautionary statements

P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P317, P321, P330, P337+P317, P362+P364, P370+P378, P403+P235, P501

Identifiers

CAS number
75-05-8
SMILES
CC#N
InChIKey
WEVYAHXRMPXWCK-UHFFFAOYSA-N
InChI
InChI=1S/C2H3N/c1-2-3/h1H3

Weigh it out

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

Names and synonyms

10 names
  • Cyanomethane
  • Ethanenitrile
  • Ethyl nitrile
  • Methane, cyano-
  • Methanecarbonitrile
  • Methyl cyanide
  • Methyl cyanide (MeCN)
  • Acetonitrile cluster
  • NSC 7593
  • ACN

Reactions

Safety data sheets

One stored sheet lists this compound in section 3, matched by the CAS number 75-05-8. Each row opens the sheet with its composition and PDF.

Work with Acetonitrile

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