3058. 2,2′-Dichlorobenzidine
Nomenclature
CAS number: 84-68-4
2,2′-Dichloro[1,1′-biphenyl]-4,4′-diamine. C12H10Cl2N2; mol wt 253.13.
C 56.94%, H 3.98%, Cl 28.01%, N 11.07%.
Description and references
Prepn from m-chloronitrobenzene: Laubenheimer, Ber. 8, 1625 (1875); Cain, May, J. Chem. Soc. 97, 723 (1910).
Properties
Needles from water or prisms from alc, mp 165°. Almost insol in water; moderately sol in alc; readily sol in ether.Derivative
Hydrochloride.C12H10Cl2N2.2HCl; mol wt 326.05.
C 44.20%, H 3.71%, Cl 43.49%, N 8.59%.