Dimethylaniline

This article is about N,N-dimethylaniline. For other constitutional isomers, see xylidine.
N,N-Dimethylaniline
Skeletal formula of dimethylaniline
Ball-and-stick model of the dimethylaniline molecule
Names
Preferred IUPAC name
N,N-Dimethylaniline
Other names
DMA
Dimethylaminobenzene
N,N-Dimethylbenzeneamine
N,N-Dimethylphenylamine
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.004.085 Edit this at Wikidata
KEGG
UNII
  • InChI=1S/C8H11N/c1-9(2)8-6-4-3-5-7-8/h3-7H,1-2H3 checkY
    Key: JLTDJTHDQAWBAV-UHFFFAOYSA-N checkY
  • CN(C)c1ccccc1
Properties
C8H11N
Molar mass 121.183 g·mol−1
Appearance Colorless liquid
Odor amine-like
Density 0.956 g/mL
Melting point 2 °C (36 °F; 275 K)
Boiling point 194 °C (381 °F; 467 K)
2% (20°C)[1]
Vapor pressure 1 mmHg (20°C)[1]
-89.66·10−6 cm3/mol
Hazards
Flash point 63 °C (145 °F; 336 K)
Lethal dose or concentration (LD, LC):
1410 mg/kg (rat, oral)[2]
50 ppm (rat, 4 hr)[2]
NIOSH (US health exposure limits):
PEL (Permissible)
 TWA 5 ppm (25 mg/m3) [skin][1]
REL (Recommended)
 TWA 5 ppm (25 mg/m3) ST 10 ppm (50 mg/m3) [skin][1]
IDLH (Immediate danger)
 100 ppm[1]
Safety data sheet (SDS) External MSDS
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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N,N-Dimethylaniline (DMA) is an organic chemical compound, a substituted derivative of aniline. It is a tertiary amine, featuring a dimethylamino group attached to a phenyl group. This oily liquid is colourless when pure, but commercial samples are often yellow. It is an important precursor to dyes such as crystal violet.

  1. ^ a b c d e NIOSH Pocket Guide to Chemical Hazards. "#0223". National Institute for Occupational Safety and Health (NIOSH).
  2. ^ a b "N,N-Dimethylaniline". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).