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N,N'-Diphenylbenzidine

CAS No.: 531-91-9

Chemical Name:: N,N'-Diphenylbenzidine

Synonyms: DFRR;N,N'-DiphenyL;Diphenylbenzidine;DEPHENYLBENZIDINE;TIMTEC-BB SBB002946;Benzidine, N,N'-diph;N'-Diphenylbenzidine;N,N-Diphenylbenzidne;N,N'-Diphenylbenzidi;SYM-DIPHENYLBENZIDINE

CBNumber:: CB2394561

Molecular Formula:: C24H20N2

Molecular Weight:: 336.43

MOL File:: 531-91-9.mol

MSDS File:: SDS

Modify Date:: 2024/8/21 22:41:43

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N,N'-Diphenylbenzidine Properties

Melting point	246-248 °C(lit.)
Boiling point	462.9°C (rough estimate)
Density	1.1750 (rough estimate)
vapor density	11.6 (vs air)
refractive index	1.7620 (estimate)
Flash point	>110°C
storage temp.	Store below +30°C.
solubility	Acetone (Slightly), DMF (Slightly), DMSO (Slightly), Ethyl Acetate (Slightly, Sonicated)
form	Fine Crystalline Powder
pka	1.31±0.40(Predicted)
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)

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07,GHS08

Signal word

Warning

Hazard statements

H302+H312+H332-H351

Precautionary statements

P201-P202-P261-P264-P270-P271-P280-P301+P312+P330-P302+P352+P312+P362+P364-P304+P340+P312-P308+P313-P405-P501

Hazard Codes

Safety Statements

22-24/25

RIDADR

2811

WGK Germany

TSCA

Yes

HazardClass

6.1(b)

PackingGroup

III

HS Code

29215900

NFPA 704

	1
0		1

N,N'-Diphenylbenzidine price More Price(13)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich(India)	8.20530	N,N′-Diphenylbenzidine for synthesis	531-91-9	5G	₹4380	2022-06-14	Buy
Sigma-Aldrich(India)	D205206	N,N′-Diphenylbenzidine 97%	531-91-9	10G	₹6808.93	2022-06-14	Buy
Sigma-Aldrich(India)	8.20530	N,N′-Diphenylbenzidine for synthesis	531-91-9	10G	₹18109.99	2022-06-14	Buy
ALFA India	ALF-A13802-14	N,N'-Diphenylbenzidine, 98%	531-91-9	25g	₹14600	2022-05-26	Buy
ALFA India	ALF-A13802-06	N,N'-Diphenylbenzidine, 98%	531-91-9	5g	₹3834	2022-05-26	Buy

Product number	Packaging	Price	Buy
8.20530	5G	₹4380	Buy
D205206	10G	₹6808.93	Buy
8.20530	10G	₹18109.99	Buy
ALF-A13802-14	25g	₹14600	Buy
ALF-A13802-06	5g	₹3834	Buy

N,N'-Diphenylbenzidine Chemical Properties,Uses,Production

Chemical Properties

GREY TO BROWNISH FINE CRYSTALLINE POWDER

Uses

N,N'-Diphenylbenzidine is an indicator suitable for redox titrations, e.g. with dichromate or cerium(IV) sulfate 1,2. It is also used as intermediates in organic synthesis.

Synthesis

The synthesis of N,N'-Diphenylbenzidine is as follows:
3.12 g (10mmol) of 4,4'-dibromodiphenyl, 2.3 mL (25 mmol) of aniline, 2.9 g (30 mmol) of t-BuONa, 183 mg (0.2 mmol) of Pd2(dba)3, and 20 mg (0.1 mmol) of P(t-Bu)3 were dissolved in 30 mL of toluene, and then stirred at 90°C for 3 hrs. The reaction mixture was cooled to room temperature and three times extracted with distilled water and diethyl ether. Precipitates in an organic layer were filtered, washed with acetone and diethyl ether, and then dried in vacuum to obtain 0.3g of the intermediate compound C (yield: 90%). synthesis of N,N'-Diphenylbenzidine.png

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

Xylene Sodium bisulfite Potassium dichromate Diphenylamine Acetic acid

Sulfuric acid Benzenamine, N-hydroxy-N-phenyl- 2-Aminodiphenylamine 1,1-DIPHENYLHYDRAZINE N-TRIMETHYLSILYLANILINE

TETRAPHENYLHYDRAZINE 4,4'-Dibromobiphenyl Benzidine Aniline

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Preparation Products

N,N'-Diphenylbenzidine Suppliers

Global( 404)Suppliers

Supplier	Tel	Country	ProdList	Advantage	Inquiry
GLR Innovations	+91 9891111994	New Delhi, India	4542	58	Inquiry
Pharmachem Research & Development Laboratories	08068441072Ext 262	Mumbai, India	65	58	Inquiry
5 E Scientific	91-22-28016026	Maharashtra, India	137	58	Inquiry
Otto Chemie Pvt. Ltd.	+91 9820041841	Mumbai, India	5873	58	Inquiry
A.J Chemicals	91-9810153283	New Delhi, India	6124	58	Inquiry
FINAR LTD	+91 - 2717 - 616717	New Delhi, India	660	58	Inquiry
Alfa Aesar	1 800 209 7001	Maharashtra, India	6913	58	Inquiry
LOBA CHEMIE PVT.LTD.	91-22-6663 6699	Mumbai, India	3077	58	Inquiry
Central Drug House(P) Ltd.	91-11-49404040	New Delhi, India	6160	58	Inquiry
Sakar Chemicals	08048250236Ext 913	Gujarat, India	2	58	Inquiry

Supplier	Advantage
GLR Innovations	58
Pharmachem Research & Development Laboratories	58
5 E Scientific	58
Otto Chemie Pvt. Ltd.	58
A.J Chemicals	58
FINAR LTD	58
Alfa Aesar	58
LOBA CHEMIE PVT.LTD.	58
Central Drug House(P) Ltd.	58
Sakar Chemicals	58

N,N'-Diphenylbenzidine Spectrum

N,N'-Diphenylbenzidine(531-91-9)MS N,N'-Diphenylbenzidine(531-91-9)¹HNMR N,N'-Diphenylbenzidine(531-91-9)¹³CNMR N,N'-Diphenylbenzidine(531-91-9)IR1 N,N'-Diphenylbenzidine(531-91-9)IR2 N,N'-Diphenylbenzidine(531-91-9)Raman

531-91-9(N,N'-Diphenylbenzidine)Related Search:

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N,N'-DIPHENYLBENZIDINE N,N'-DIPHENYL BIPHENYLAMINE N'-Diphenylbenzidine 4-(4-anilinophenyl)-N-phenylaniline N,N'-Diphenylbenzidine, 97%, indicator Benzidine, N,N'-diph N,N'-(1,1'-Biphenyl-4,4'-diyl)bisaniline N,N'-Diphenyl-1,1'-biphenyl-4,4'-diamine N,N'-Diphenyl-4,4'-biphenyldiamine N,N'-Diphenylbiphenyl-4,4'-diamine N,N'-Diphenylbenzidine,97% N,N-Diphenylbenzidne N,N'-Diphenylbenzidi N,N'-Diphenylbenzidine 4,4'-BIS(ANILINO)BIPHENY [1,1'-Biphenyl]-4,4'-diamine,N4,N4'-diphenyl- N,N'-Diphenylbenzidine,2-aMine N,N'-diphenylbenzidine N,N'-Diphenylbenzidine DPB N,N'-Diphenylbenzidine 97% (4),N(4')-Diphenyl-biphenyl-4,4'-diamine 1’-biphenyl]-4,4’-diamine,n,n’-diphenyl-[ Benzidine, N,N'-diphenyl- Diphenylbenzidine N,N-Diphenyl Diphenylamine N,N-diphenylbenzidine (sym.) N,N'-DiphenylBenzidineGr SYM-DIPHENYLBENZIDINE TIMTEC-BB SBB002946 4,4'-DIANILINOBIPHENYL 4,4'-BIS(ANILINO)BIPHENYL DEPHENYLBENZIDINE 4,4'-Bis(phenylamino)biphenyl 1,1-Biphenyl-4,4-diamine, N,N-diphenyl- N,N'-DiphenyL N,N'-Diphenylbenzidine > N,N'-DIPHENYLBENZIDINE FOR SYNTHESIS N,N'-Diphenylbenzidine USP/EP/BP DFRR N,N'-bisphenyl-(1,1'-biphenyl)-4,4'-diamine N,N-Diphenyl benzidine 98% AR 5GM Diphenyl benzidine solution N,N'-Diphenyl benzidine, GR 99% N,N`-DIPHENYL BENZIDINE AR N,N-Diphenylbenzidine, 98+% N,N' -diphenylbiphenylene diamine 4,4'-Bis(phenylamino)-1,1'-biphenyl N,N'-Diphenylbenzidine, ≥ 98.0% N,N'-Diphenylbenzidine N4,N4'-Diphenyl-[1,1'-biphenyl]-4,4'-diamine 4,4'-Bis(anilino)biphenyl 4,4'-Bis(phenylamino)-1,1'-biphenyl 4,4'-DIANILINOBIPHENYL 531-91-9 53-91-9 4C6H5NHC6H4C6H44NHC6H5 C24H20N2 Reagent for High-Performance Polymer Research Biphenyls (for High-Performance Polymer Research)