Dimethylamine

C₂H₇NCAS 124-40-345.09 g/mol

Open in Covalent MOL file

Secondary amine

Properties

Molecular formula: C₂H₇N
Molar mass: 45.09 g/mol
Exact mass: 45.0578 Da
Density: 0.6804 g/mL (at 0 °C)
Melting point: −92.2 °C
Boiling point: 6.8 °C
pKa: 10.732 (conjugate acid, 25 °C)
Water solubility: 1,630 g/L (40 °C)
logP: -0.16Crippen estimate
Polar surface area: 12.0 Å²
H-bond donors / acceptors: 1 / 1
Rotatable bonds: 0

Hazards

Danger

H220 Extremely flammable gasFlammable gases
H315 Causes skin irritationSkin corrosion/irritation
H318 Causes serious eye damageSerious eye damage/eye irritation
H332 Harmful if inhaledAcute toxicity, inhalation
H335 May cause respiratory irritationSpecific target organ toxicity, single exposure; Respiratory tract irritation

Harmonised EU classification (CLP Annex VI, index 612-001-00-9[2]), via PubChem.

Precautionary statements

P203, P210, P222, P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P354+P338, P317, P319, P321, P332+P317, P362+P364, P377, P381, P403, P403+P233, P405, P501

Identifiers

CAS number

124-40-3

SMILES

CNC

InChIKey

ROSDSFDQCJNGOL-UHFFFAOYSA-N

InChI

InChI=1S/C2H7N/c1-3-2/h3H,1-2H3

Weigh it out

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

Names and synonyms

4 names

Methanamine, N-methyl-
N-Methylmethanamine
N,N-Dimethylamine
NSC 8650

Safety data sheets

One stored sheet lists this compound in section 3, matched by the CAS number 124-40-3. Each row opens the sheet with its composition and PDF.

Dimethylamine, solution in water 26–45 %Fisher Scientific Company · 2025-12-19

Open in the SDS library

Work with Dimethylamine

Predict the NMR spectrum1H and 13C shifts with multiplicities Make a solutionWhat to weigh for any molarity and volume Check drug-likenessLipinski, Veber and lead-likeness Boiling point under vacuumAt any pressure, from its normal boiling point Isotope patternExact mass and the mass spectrum pattern

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.

Aminol2008-39-1Salt N,N-Dimethylamine hydrochloride506-59-2Salt

Similar compounds

Tetrakis(dimethylamido)titanium3275-24-967 % similar Symmetrical dimethylhydrazine540-73-833 % similar Dimethylamine-epichlorohydrin copolymer25988-97-030 % similar

Tanimoto similarity of circular fingerprints over the whole catalogue.

All similar compounds

Same formula

Ethylamine75-04-7

Elsewhere

PubChem CAS Common Chemistry NIST WebBook Wikipedia