CAS 531-91-9

Diphenylbenzidine

Description:

Diphenylbenzidine, with the CAS number 531-91-9, is an organic compound that belongs to the class of diphenylamines. It is characterized by its structure, which consists of two phenyl groups attached to a central benzidine unit. This compound is typically a solid at room temperature and is known for its dark color, often appearing as a dark brown or black crystalline substance. Diphenylbenzidine is primarily used as a dye intermediate and in the production of various pigments. It exhibits properties such as good thermal stability and resistance to fading, making it valuable in industrial applications. However, it is important to note that diphenylbenzidine is considered a potential carcinogen, and exposure should be minimized. Safety precautions are essential when handling this compound, as it can pose health risks. Additionally, it is soluble in organic solvents but has limited solubility in water, which influences its applications in various chemical processes.

Formula: C₂₄H₂₀N₂

InChI: InChI=1S/C24H20N2/c1-3-7-21(8-4-1)25-23-15-11-19(12-16-23)20-13-17-24(18-14-20)26-22-9-5-2-6-10-22/h1-18,25-26H

InChI key: InChIKey=FDRNXKXKFNHNCA-UHFFFAOYSA-N

SMILES: N(C1=CC=C(C=C1)C2=CC=C(NC3=CC=CC=C3)C=C2)C4=CC=CC=C4

Synonyms:

• 4,4′-Bis(phenylamino)-1,1′-biphenyl
• 4,4′-Bis(phenylamino)biphenyl
• Benzidine, N,N′-diphenyl-
• Diphenylbenzidine
• N,N'-Diphenyl Biphenylamine
• N,N'-Diphenyl-[1,1'-biphenyl]-4,4'-diamine
• N,N'-Diphenylbenzidine DPB
• N,N'-diphenylbiphenyl-4,4'-diamine
• N,N-Diphenyl Diphenylamine
• N,N-diphenylbenzidine (sym.)
• N,N′-Diphenyl-p,p′-biphenylenediamine
• NSC 4310
• [1,1′-Biphenyl]-4,4′-diamine, N,N′-diphenyl-
• [1,1′-Biphenyl]-4,4′-diamine, N⁴,N^4′-diphenyl-
• N,N-Diphenylbenzidine
• N,N′-Diphenylbenzidine

N,N'-Diphenylbenzidine

CAS: 531-91-9

Formula: C₂₄H₂₀N₂

Purity: >98.0%(HPLC)(N)

Color and Shape: White to Gray to Brown powder to crystal

Molecular weight: 336.44

Ref: 3B-D0878

N,N'-Diphenylbenzidine, 98%

CAS: 531-91-9

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. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and

Formula: C₂₄H₂₀N₂

Purity: 98%

Color and Shape: Powder, White to cream to pale green to pale gray to gray

Molecular weight: 336.44

Ref: 02-A13802

N4,N4'-Diphenyl-[1,1'-biphenyl]-4,4'-diamine

CAS: 531-91-9

Formula: C₂₄H₂₀N₂

Purity: 98%

Color and Shape: Solid

Molecular weight: 336.4290

Ref: IN-DA0035BM

4,4'-Bis(phenylamino)biphenyl

CAS: 531-91-9

4,4'-Bis(phenylamino)biphenyl

Purity: 99.9%

Color and Shape: Powder

Molecular weight: 336.429g/mol

Ref: 54-OR11178

N,N'-Diphenylbenzidine

CAS: 531-91-9

N,N'-Diphenylbenzidine is a chemical compound that has been used as a dye and a photoluminescent material. It has the ability to emit light when it is excited by light or other energy sources, such as hydrochloric acid. The dihedral angle of the molecule is important for the optical properties of this compound. The pyrazole ring, which is part of the molecule's structure, can be reduced by dehydroascorbic acid. This reaction causes a redox potential in which the molecule will either emit blue or yellow light depending on its environment. N,N'-Diphenylbenzidine also has an affinity for binding with calcium ions and can be classified as being either chemically neutral or basic.

Formula: C₂₄H₂₀N₂

Purity: Min. 96.5 Area-%

Color and Shape: Powder

Molecular weight: 336.43 g/mol

Ref: 3D-FD00206

4,4'-Dianilinobiphenyl

CAS: 531-91-9

Purity: 98.0%

Color and Shape: Solid

Molecular weight: 336.43798828125

Ref: 10-F049443