Dimethylethanolamine

(Redirected from Deanol)

Dimethylethanolamine (DMAE or DMEA) is an organic compound with the formula (CH3)2NCH2CH2OH. It is bifunctional, containing both a tertiary amine and primary alcohol functional groups. It is a colorless viscous liquid. It is used in skin care products for improving skin tone and also taken orally as a nootropic. It is prepared by the ethoxylation of dimethylamine.[2]

Dimethylethanolamine
Skeletal formula of dimethylethanolamine
Ball-and-stick model of the dimethylethanolamine molecule
Names
Preferred IUPAC name
2-(Dimethylamino)ethan-1-ol
Other names
  • Deanol
  • Dimethyl ethanolamine
  • Dimethylaminoethanol
  • N,N-Dimethylaminoethanol
  • N,N-Dimethylethanolamine
Identifiers
3D model (JSmol)
AbbreviationsDMAE, DMEA
1209235
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard100.003.221 Edit this at Wikidata
EC Number
  • 203-542-8
KEGG
MeSHDeanol
RTECS number
  • KK6125000
UNII
UN number2051
  • InChI=1S/C4H11NO/c1-5(2)3-4-6/h6H,3-4H2,1-2H3 ☒N
    Key: UEEJHVSXFDXPFK-UHFFFAOYSA-N ☒N
  • CN(C)CCO
Properties
C4H11NO
Molar mass89.138 g·mol−1
AppearanceColourless liquid
OdorFishy, ammoniacal
Density890 mg mL−1
Melting point−59.00 °C; −74.20 °F; 214.15 K
Boiling point134.1 °C; 273.3 °F; 407.2 K
log P−0.25
Vapor pressure816 Pa (at 20 °C)
Acidity (pKa)9.23 (at 20 °C)[1]
Basicity (pKb)4.77 (at 20 °C)
1.4294
Pharmacology
N06BX04 (WHO)
Hazards
GHS labelling:
GHS02: Flammable GHS05: Corrosive GHS07: Exclamation mark
Danger
H226, H302, H312, H314, H332
P280, P305+P351+P338, P310
Flash point39 °C (102 °F; 312 K)
Explosive limits1.4–12.2%
Lethal dose or concentration (LD, LC):
  • 1.214 g/kg (dermal, rabbit)
  • 2 g/kg (oral, rat)
Related compounds
Related alkanols
Related compounds
Diethylhydroxylamine
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Industrial uses

Dimethylaminoethanol is used as a curing agent for polyurethanes and epoxy resins. It is a precursor to other chemicals, such as the nitrogen mustard 2-dimethylaminoethyl chloride.[3] The acrylate ester, dimethylaminoethyl acrylate is used as a flocculating agent.[4]

Related compounds are used in gas purification, e.g. removal of hydrogen sulfide from sour gas streams.

Human uses

The bitartrate salt of DMAE, i.e. N,N-dimethylethanolamine bitartrate, is sold as a dietary supplement.[5] It is a white powder providing 37% DMAE.[6]

Animal tests show possible benefit for improving spatial memory[7] and working memory.[8]

See also

References