2-(甲氨基)乙醇

Description

2-(Methylamino)ethanol · CAS 109-83-1 · C3H9NO. UNII ZMQ4G4V497. Boiling Point: 1559.24 °C; Boiling Point: 156 °C; Boiling Point: 156 °C @760 [mm Hg].

Identification

CAS Registry Number	109-83-1
PubChem CID	8016
Molecular formula	C3H9NO
IUPAC name	2-(methylamino)ethanol
UNII (FDA)	ZMQ4G4V497

Computed Descriptors

Molecular Weight	75.11
XLogP3	-0.9
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	2
Exact Mass	75.068413911
Monoisotopic Mass	75.068413911
Topological Polar Surface Area	32.3
Heavy Atom Count	5
Formal Charge	0

Physical & Chemical Properties

Boiling Point	1559.24 °C
Boiling Point	156 °C
Boiling Point	156 °C @760 [mm Hg]
Melting Point	23.9 °F (NTP, 1992)
Melting Point	-3 °C
Melting Point	-4.5 °C
Flash Point	165 °F (NTP, 1992)
Flash Point	73.9 °C
Flash Point	76 °C (169 °F) - closed cup
Flash Point	165 °F (74 °C) (Open cup)

Physical description & handling notes

• Methylethanolamine appears as a clear colorless liquid. Flash point 165 °F. Less dense than water and soluble in water. Vapors are heavier than air. Produces toxic oxides of nitrogen during combustion. Used to make other chemicals.
• Liquid; CBI
• Viscous liquid with a fishy odor; [Merck Index]
• VISCOUS LIQUID WITH CHARACTERISTIC ODOUR.
• Viscous liquid
• Clear colorless liquid

GHS Hazard Classification

Reported hazard statements	H302, H312, H314, H318 (21.4%), H335 (23.9%), H402, H412, H227

Documented Uses

• Used in electrostatic automotive coatings, for acid gas scrubbing, and in textile chemicals and pharmaceuticals; [HSDB]
• Painting (Pigments, Binders, and Biocides) [Category: Paint]
• Textiles (Printing, Dyeing, or Finishing) [Category: Industry]
• Acid gas scrubbing, electrostatic automotive coatings. /From table/
• Textile chemicals, pharmaceuticals.
• Not Known or Reasonably Ascertainable

Synonyms

2-(Methylamino)ethanol; 109-83-1; N-Methylethanolamine; 2-METHYLAMINOETHANOL; Methylethanolamine; Methylethylolamine; Ethanol, 2-(methylamino)-; N-Methyl-2-aminoethanol; 2-(N-Methylamino)ethanol; N-Methylmonoethanolamine; Monomethylaminoethanol; Monomethylethanolamine; (2-Hydroxyethyl)methylamine; N-Monomethylaminoethanol; Methyl(2-hydroxyethyl)amine; Monomethylmonoethanolamine

Frequently Asked Questions

What are the CAS number and molecular formula of 2-(Methylamino)ethanol?

CAS 109-83-1; molecular formula C3H9NO; molecular weight — g/mol.

What other names is 2-(Methylamino)ethanol known by?

2-(Methylamino)ethanol, 109-83-1, N-Methylethanolamine, 2-METHYLAMINOETHANOL, Methylethanolamine, Methylethylolamine.

Is 2-(Methylamino)ethanol classified as hazardous?

Hazard statements reported: H302, H312, H314, H318, H335.

What are the key physical properties of 2-(Methylamino)ethanol?

Boiling Point: 1559.24 °C; Boiling Point: 156 °C; Boiling Point: 156 °C @760 [mm Hg]; Melting Point: 23.9 °F (NTP, 1992).

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.