3234. N,N-Dimethylaniline

Nomenclature

CAS number: 121-69-7
N,N-Dimethylbenzenamine; dimethylphenylamine.
C8H11N; mol wt 121.18.
C 79.29%, H 9.15%, N 11.56%.

Description and references

Made by heating aniline, methyl alcohol, and H2SO4 under pressure, the sulfate formed being converted by NaOH to the free base. Toxicity data: H. F. Smyth et al., Am. Ind. Hyg. Assoc. J. 23, 95 (1962).

Chemical structure

Properties

Oily liq. Poisonous. d420 0.956. bp 192-194°. mp 2°. Flash pt 61°C. nD20 1.5582. Insol in water. Freely sol in alcohol, chloroform, ether. LD50 orally in rats: 1.41 ml/kg (Smyth).

Caution

Potential symptoms of overexposure are anoxia, cyanosis, weakness, dizziness and ataxia; methemoglobinemia. See NIOSH Pocket Guide to Chemical Hazards (DHHS/NIOSH 97-140, 1997) p 112.

Use

Solvent; manuf vanillin, Michler's ketone, methyl violet and other dyes. As reagent for methanol, methyl furfural, H2O2, nitrate, alcohol, formaldehyde.