CAS No:531-91-9 N,N'-Diphenylbenzidine|N,N'-DIPHENYL BIPHENYLAMINE;SYM-DIPHENYLBENZIDINE;TIMTEC-BB SBB002946;(4),N(4')-Diphenyl-biphenyl-4,4'-diamine;1’-biphenyl]-4,4’-diamine,n,n’-diphenyl-[

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Product Name: N,N'-Diphenylbenzidine
Synonyms: N,N'-DIPHENYL BIPHENYLAMINE;SYM-DIPHENYLBENZIDINE;TIMTEC-BB SBB002946;(4),N(4')-Diphenyl-biphenyl-4,4'-diamine;1’-biphenyl]-4,4’-diamine,n,n’-diphenyl-[
CAS No.: 531-91-9
Molecular Formula: C24H20N2
Molecular Weight : 336.43
Specification : 98%
Place of Origin: China
Appearance :
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N,N'-Diphenylbenzidine Chemical Properties

Melting point	246-248 °C(lit.)

Boiling point	462.9°C (rough estimate)

density	1.1750 (rough estimate)

refractive index	1.7620 (estimate)

Fp	>110°C

storage temp.	Store below +30°C.

form	Fine Crystalline Powder

color	Gray to brownish

Water Solubility	Insoluble in water.

Sensitive	Light Sensitive

Merck	14,3319

BRN	2220993

InChIKey	FDRNXKXKFNHNCA-UHFFFAOYSA-N

CAS DataBase Reference	531-91-9(CAS DataBase Reference)

NIST Chemistry Reference	[1,1'-Biphenyl]-4,4'-diamine, n,n'-diphenyl-(531-91-9)

EPA Substance Registry System	[1,1'-Biphenyl]- 4,4'-diamine, N,N'-diphenyl-(531-91-9)



N,N'-Diphenylbenzidine Usage And Synthesis

Chemical Properties	GREY TO BROWNISH FINE CRYSTALLINE POWDER

Uses	See diphenylamine.

Purification Methods	Crystallise the benzidine from toluene or ethyl acetate. Store it in the dark. [Beilstein 13 H 223, 13 IV 368.]



N,N'-Diphenylbenzidine Preparation Products And Raw materials

Raw materials	Sulfuric acid -->Acetic acid glacial-->Xylene-->Sodium bisulfite-->Potassium dichromate-->Diphenylamine

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