2,2'-Dichlorobenzidine
Title: 2,2¢-Dichlorobenzidine
CAS Registry Number: 84-68-4
CAS Name: 2,2¢-Dichloro[1,1¢-biphenyl]-4,4¢-diamine
Molecular Formula: C12H10Cl2N2
Molecular Weight: 253.13
Percent Composition: C 56.94%, H 3.98%, Cl 28.01%, N 11.07%
Literature 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.
Melting point: mp 165°
 
Derivative Type: Hydrochloride
Molecular Formula: C12H10Cl2N2.2HCl
Molecular Weight: 326.05
Percent Composition: C 44.20%, H 3.71%, Cl 43.49%, N 8.59%
Properties: Leaflets from water, moderately sol in water.
 
Use: Manuf azo dyes.

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