4,4'-BIPHENYLDICARBONITRILE Chemical Properties

Melting point:

236-240 °C(lit.)

Boiling point:

332.72°C (rough estimate)

Density 

1.1974 (rough estimate)

refractive index 

1.6152 (estimate)

form 

Solid

color 

White to Amber

Water Solubility 

Insoluble in water.

BRN 

1869917

CAS DataBase Reference

1591-30-6(CAS DataBase Reference)

EPA Substance Registry System

[1,1'-Biphenyl]-4,4'-dicarbonitrile (1591-30-6)

Safety Information

Hazard Codes 

Xn

Risk Statements 

20/21/22

Safety Statements 

36/37

RIDADR 

3276

WGK Germany 

3

RTECS 

DV2625000

TSCA 

Yes

HazardClass 

6.1

PackingGroup 

III

HS Code 

2926907090

Toxicity

LD50 ipr-mus: 75 mg/kg NTIS** AD691-490

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

4,4'-BIPHENYLDICARBONITRILE Usage And Synthesis

Uses

Biphenyl-4,4'-dicarbonitrile is used as a pharmaceutical intermediate.

Synthesis Reference(s)

The Journal of Organic Chemistry, 51, p. 2627, 1986 DOI: 10.1021/jo00364a002
Tetrahedron, 28, p. 5081, 1972 DOI: 10.1016/0040-4020(72)88161-4
Tetrahedron Letters, 23, p. 4215, 1982 DOI: 10.1016/S0040-4039(00)88707-9

General Description

4,4′-Biphenyldicarbonitrile (BPCN), also known as 4,4′-dicyanobiphenyl, is a para-disubstituted biphenyl. It can be prepared from benzidine dihydrochloride.3 BPCN belongs to the monoclinic crystal system and P21 space group.

Safety Profile

Poison by intraperitoneal route. When heated to decomposition itemits toxic fumes of NOx and CN-.

4,4'-BIPHENYLDICARBONITRILE(1591-30-6)Related Product Information

• 4-Cyanobiphenyl
• 4-Pentyloxy-[1,1'-biphenyl]-4'-carbonitrile
• 2,2'-BIPHENYLDICARBONITRILE
• 4'-Hydroxy-4-biphenylcarbonitrile
• p-Tolunitrile
• Phenyl benzonitrile
• 4,4'-Dimethylbiphenyl
• 4-Cyano-4'-methylbiphenyl
• 4,4'-BIPHENYLDICARBONITRILE
• 2,2',3,3',5,5',6,6'-OCTAFLUORO-4,4'-BIPHENYLDICARBONITRILE