N-Methylethanolamine

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N-Methylethanolamine[1]
Skeletal formula of N-methylethanolamine
Identifiers
CAS number 109-83-1 YesY
PubChem 8016
ChemSpider 13836021 YesY
EC number 203-710-0
UN number 2735
MeSH N-methylaminoethanol
ChEBI CHEBI:21763 YesY
ChEMBL CHEMBL104083 YesY
RTECS number KL6650000
Beilstein Reference 1071196
Jmol-3D images Image 1
Properties
Molecular formula C3H9NO
Molar mass 75.11 g mol−1
Appearance Colourless liquid
Odor Ammoniacal
Density 935 g mL−1
Melting point −4.50 °C; 23.90 °F; 268.65 K
Boiling point 158.1 °C; 316.5 °F; 431.2 K
Solubility in water Miscible
log P 1.062
Vapor pressure 70 Pa (at 20 °C)
Refractive index (nD) 1.439
Hazards
GHS pictograms The corrosion pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) The exclamation-mark pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS)
GHS signal word DANGER
GHS hazard statements H302, H312, H314
GHS precautionary statements P280, P305+351+338, P310
EU Index 603-080-00-0
EU classification Corrosive C
R-phrases R21/22, R34
S-phrases (S1/2), S26, S36/37/39, S45
Flash point 76 °C (169 °F; 349 K)
Explosive limits 1.6–19.8%
Related compounds
Related alkanols
Related compounds Diethylhydroxylamine
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

N-Methylethanolamine is an alkanolamine and a toxic, flammable, corrosive, colorless, viscous liquid. It is the biochemical precursor of choline.

With both an amine and an hydroxyl functional groups, it is a useful intermediate in the chemical synthesis of various products including polymers and pharmaceuticals. It is also used as a solvent, for example in the natural gas-processing industry together with its analogs ethanolamine and dimethylethanolamine.

N-Methylethanolamine can be prepared by the reaction of ethylene oxide with methylamine.

See also[edit]

References[edit]

  1. ^ Merck Index, 12th Edition, 6096.