1236. 2,4′-Biphenyldiamine

Nomenclature

CAS number: 492-17-1
Diphenyline; 2,4′-diphenyldiamine; o,p′-dianiline; 2,4′-diaminodiphenyl.
C12H12N2; mol wt 184.24.
C 78.23%, H 6.56%, N 15.20%.

Description and references

Preparation by reducing azobenzene with tin and hydrochloric acid: Fischer, Monatsh. Chem. 6, 547 (1885).

Chemical structure

Properties

Needles from dil alc, mp 45°. bp 363°. Very slightly sol in alc or ether.

Use

Detection of tungsten; manuf azo dyes.