1,4-Dicyanobenzene Chemical Properties

Melting point:

221-225 °C (lit.)

Boiling point:

227.54°C (rough estimate)

Density 

1.3g/cm3(25℃)

vapor density 

4.42

refractive index 

1.6231 (estimate)

storage temp. 

Sealed in dry,Room Temperature

solubility 

Chloroform (Slightly), DMSO (Slightly)

form 

Powder

color 

White to light yellow

Water Solubility 

0.08 g/L (23 ºC)

BRN 

1072210

Exposure limits

NIOSH: IDLH 25 mg/m3

Stability:

Stable. Incompatible with strong acids, strong bases, strong oxidizing agents, strong reducing agents.

CAS DataBase Reference

623-26-7(CAS DataBase Reference)

NIST Chemistry Reference

1,4-Benzenedicarbonitrile(623-26-7)

EPA Substance Registry System

1,4-Benzenedicarbonitrile (623-26-7)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-24/25

RIDADR 

3439

WGK Germany 

2

RTECS 

CZ1925000

TSCA 

Yes

HazardClass 

6.1(b)

PackingGroup 

III

HS Code 

29269095

Toxicity

LD50 orl-rat: >6400 mg/kg ZAARAM 19,225,69

MSDS

• Language:English Provider:1,4-Dicyanobenzene
• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

1,4-Dicyanobenzene Usage And Synthesis

Chemical Properties

biege powder

Uses

1,4-dicyanobenzene as a new internal standard in utilizing solid-state infrared intensity methods for the determination of thiocyanate bonding. Used as photosensitizer in [2+2] cycloadditions, nitrile building block.

Synthesis Reference(s)

The Journal of Organic Chemistry, 51, p. 4714, 1986 DOI: 10.1021/jo00374a041
Tetrahedron Letters, 8, p. 759, 1967

Safety Profile

Moderately toxic by ingestion and intraperitoneal routes. An eye irritant. When heated to decomposition it emits toxic fumes of CNand NO,. See also NITRILES.

Purification Methods

Crystallise the dinitrile from EtOH or AcOH, and has m 221.5-222.5o after sublimation. [Beilstein 9 H 846, 9 I 376, 9 II 613, 9 III 4255, 9 IV 3328.]

1,4-Dicyanobenzene(623-26-7)Related Product Information

• Benzonitrile
• p-Tolunitrile
• Terephthaloyl chloride
• Dibutyl phthalate
• Dimethyl phthalate
• O-Phthalimide
• Phthalic anhydride
• 4-Cyanophenol
• 1,3-Bis(aminomethyl)benzene
• Terephthalic acid
• 4-Dimethylaminobenzoic acid
• 4-Dimethylaminobenzaldehyde
• 4-Nitrobenzonitrile
• Terephthalaldehyde
• 1,4-Dimethoxybenzene
• mono-Methyl terephthalate
• Dioctyl terephthalate
• Phthalonitrile