N-Methylethanolamine

N-Methylethanolamine^[1]
Names


IUPAC name 2-Methylaminoethanol
Other names Methyl β-hydroxyethylamine
Identifiers
CAS Number	109-83-1^Y
3D model (Jmol)	Interactive image
Beilstein Reference	1071196
ChEBI	CHEBI:21763^Y
ChEMBL	ChEMBL104083^Y
ChemSpider	13836021^Y
ECHA InfoCard	100.003.374
EC Number	203-710-0
MeSH	N-methylaminoethanol
PubChem	8016
RTECS number	KL6650000
UN number	2735
InChI InChI=1S/C3H9NO/c1-4-2-3-5/h4-5H,2-3H2,1H3^Y Key: OPKOKAMJFNKNAS-UHFFFAOYSA-N^Y
SMILES CNCCO
Properties
Chemical formula	C₃H₉NO
Molar mass	75.11 g·mol⁻¹
Appearance	Colourless liquid
Odor	Ammoniacal
Density	0.935 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 (n_D)	1.439
Hazards
GHS pictograms
GHS signal word	DANGER
GHS hazard statements	H302, H312, H314
GHS precautionary statements	P280, P305+351+338, P310
EU classification (DSD)	C
R-phrases	R21/22, R34
S-phrases	(S1/2), S26, S36/37/39, S45
Flash point	76 °C (169 °F; 349 K)
Autoignition temperature	350 °C (662 °F; 623 K)
Explosive limits	1.6–19.8%
Related compounds
Related alkanols	Dimethylethanolamine Diethylethanolamine Diethanolamine N,N-Diisopropylaminoethanol Methyl diethanolamine Triethanolamine Bis-tris methane
Related compounds	Diethylhydroxylamine
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Y verify (what is ^YN ?)
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.

References

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