N,N'-Diphenylbenzidine /BEST PRICE CAS NO.531-91-9

Product Name: N,N'-Diphenylbenzidine

Synonyms: N,N'-DIPHENYLBENZIDINE;N,N'-DIPHENYL BIPHENYLAMINE;N'-Diphenylbenzidine;4-(4-anilinophenyl)-N-phenylaniline;N,N'-Diphenylbenzidine, 97%, indicator;Benzidine, N,N'-diph;SYM-DIPHENYLBENZIDINE;TIMTEC-BB SBB002946

CAS: 531-91-9

MF: C24H20N2

MW: 336.43

EINECS: 208-521-7

Product Categories: -;Aromatic Phenylacetic Acids and Derivatives;Biphenyls (for High-Performance Polymer Research);Functional Materials;Reagent for High-Performance Polymer Research;C11 to C38Titration;C20 to C30+;Analytical Reagents;Analytical/Chromatography;Building Blocks;Amines;Indicators;Nitrogen Compounds;Redox Indicators;Chemical Synthesis;Nitrogen Compounds;Organic Building Blocks;Redox Indicators;Titration

Mol File: 531-91-9.mol

N,N'-Diphenylbenzidine Structure

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)

Safety Information

Hazard Codes Xi

Safety Statements 22-24/25

RIDADR 2811

WGK Germany 3

F 8

TSCA Yes

HazardClass 6.1(b)

PackingGroup III

HS Code 29215900

MSDS Information

Provider Language

SigmaAldrich English

ACROS English

ALFA English

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

Henan CoreyChem Co., Ltd, based on the original Zhengzhou Cote Chemical Research Institute, be brave in absorbing highly educated talents & overseas returnees; actively responded to Zhengzhou City High-tech Zone Government’s Special Care Policy, reorganized and founded in National University of Science and Technology Park, which is a high-tech, stock enterprise of high-end chemical Custom synthesis;The park was created by the People's Government of Henan Province, and proved by Ministry of Education and the National Science & Technology, taking the construction mode of "many college a park, and common development", mainly depends on Zhengzhou University and Henan University’s scientific research and talent advantage to set up Universities, scientific research institute and enterprise scientific research achievements transformation platform, to make high-tech enterprises incubate,  is the new high-tech talent gathering base, high and new technology industry enterprise radiation base, colleges and universities technological innovation base.

 

Henan Coreychem Co., Ltd, facing global High-tech pharmaceutical raw materials, high complex new type intermediates, fine chemicals custom synthesis, scale-up production and Rare chemicals trade. Corey have well-equipped machine, strong technical force and considerate marketing team service. We also have rich experience advantage in basic research, small scale process development, scale-up, industrial technology development & production and cost control.

 

Our R&D center building area is 811 square meters, with 3 contributing proffesor of technical advisor, 4 Dr., 10 masters, and 28 research staff. Our level of chemical synthesis is known to the industry. So we have accumulated rich experience in synthetic methods design and exploring the synthesis of new technology. Not only we are good in heterocyclic chemistry, chiral chemistry (asymmetric synthesis and enzyme reactions), metal organic synthesis, high throughput chemistry, also specializes in bioorganic chemistry, including nucleosides, nucleotides, sugar chemistry, peptide chemistry. R & D center has many sets of 10 liters, 20 liters, 50 liters, 100L multifunction high and low pressure reaction still, rotary evaporator, anhydrous anaerobic reaction devices, hydrogenation equipment, cryogenic process (-120 degrees) equipment, to complete mg level custom synthesis and kg level process development experiments. The Existing 600M NMR, LCMS, Fourier Infrared Spectrometer, liquid chromatography, differentialscanning calorimetry, and other advanced detection equipment areto ensure quality and efficient completion of R&D projects. So far our completed custom synthesis products is more than 5300 species, where dozens of them are non-CAS declaration products, almost including all types of organic reactions.

 

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Henan Coreychem co., LTD. is committed to provide cost effective chemical service to the global fine chemical industry product development agencies; we adhering to the consistent good commercial reputation, to create a highly efficient, high quality of chemical research, development, production, sales and service of integrated platform, let our customers faster, better get ideal and thoughtful service.