2977. p-Diaminoazobenzene

Nomenclature

CAS number: 538-41-0
4,4′-Azobisbenzenamine; 4,4′-azodianiline; p-azoaniline; 4,4′-diaminoazobenzene.
C12H12N4; mol wt 212.25.
C 67.91%, H 5.70%, N 26.40%.

Description and references

Prepn: Witt, Kopetschini, Ber. 45, 1136 (1912); Brode et al., J. Am. Chem. Soc. 77, 2762 (1955). Lab procedure starting with p-aminoacetanilide; Santurri et al., Org. Synth. 40, 18 (1960).

Chemical structure

Properties

Golden-yellow needles, dec 238-241°. Absorption max (ethanol): 400 nm. Slightly soluble in water, benzene, petr ether; freely sol in alcohol.