N,N’-Diphenylbenzidine

N,N'-Diphenylbenzidine, also known as CAS 531-91-9, is a biochemical used for proteomics research. It has a chemical formula of C24H20N2 and is an organic compound consisting of two phenyl rings linked by a nitrogen atom. it can be used for synthesis. It also has an EC Number of 208-521-7 and is referred to as Benzidine, N,N'-diphenyl- or [1,1'-Biphenyl]-4,4'-diamine,N4,N4'-diphenyl-.

531-91-9

Chemical Name:

N,N'-Diphenylbenzidine

CAS No:

531-91-9

Molecular Fomula:

C24H20N2

Formula Weight:

336.43

Chemical Uses

Description:

N,N’-Diphenylbenzidine, also known as CAS 531-91-9, is a biochemical used for proteomics research. It is an organic compound consisting of two phenyl rings linked by a nitrogen atom and has a chemical formula of C24H20N2. This chemical has a wide range of applications, including being used in synthesizing organic compounds.

Chemical Properties:

GREY TO BROWNISH FINE CRYSTALLINE POWDER

Uses:

N,N’-Diphenylbenzidine has countless uses in proteomics research, as it is an important chemical used in the development and synthesis of proteins. It is also used in drug discovery to create new medications and increase existing drugs’ efficiency. This makes it a valuable asset in the medical field.

In addition to its use in proteomics research and drug discovery, N,N’-Diphenylbenzidine is also used in synthesizing polymers, such as polyurethanes and polyethylene terephthalate. It also produces paints, dyes, adhesives, and polyimides.

Synthesis

Synthesis of N,N’-Diphenylbenzidine is achieved by combining 4,4′-dibromodiphenyl (3.12 g, 10 mmol), aniline (2.3 mL, 25 mmol), t-BuONa (2.9 g, 30 mmol), Pd2(dba)3 (183 mg, 0.2 mmol), and P(t-Bu)3 (20 mg, 0.1 mmol) in toluene (30 mL). Then, the mixture was stirred at 90°C for 3 hrs. After cooling to room temperature, the reaction was extracted with distilled water and diethyl ether three times. The organic layer was filtered, the precipitates were washed with acetone and diethyl ether, and the resulting intermediate compound C was dried in a vacuum, yielding 0.3 g (90% yield).

Chemical Properties

Chemical name:

N,N'-Diphenylbenzidine

Cas No:

531-91-9

Molecular Formula:

C24H20N2

Formula Weight:

336.43 g/mol

EINECS:

208-521-7

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)

Fp

>110°C

storage temp.

Store below +30°C.

form

Fine Crystalline Powder

Pka

1.31±0.40(Predicted)

color

Gray to brownish

Water Solubility

Insoluble in water.

Sensitive

Light Sensitive

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