1,4-Dicyanobenzene

1,4-Dicyanobenzene is an organic compound with the formula C6H4(CN)2. Two other isomers exist, phthalonitrile and isophthalonitrile. All three isomers are produced commercially by ammoxidation of the corresponding xylene isomers. 1,4-Dicyanobenzene is a colorless or white solid with low solubility in water.[1] Hydrogenation of isophthalonitrile affords p-xylylenediamine.

1,4-Dicyanobenzene
Names
Preferred IUPAC name
Benzene-1,4-dicarbonitrile
Other names
Terephthalonitrile; p-Dicyanobenzene
Identifiers
3D model (JSmol)
ChEMBL
ChemSpider
ECHA InfoCard 100.009.804
EC Number
  • 210-783-2
UNII
  • InChI=1S/C8H4N2/c9-5-7-1-2-8(6-10)4-3-7/h1-4H
    Key: BHXFKXOIODIUJO-UHFFFAOYSA-N
  • C1=CC(=CC=C1C#N)C#N
Properties
C8H4N2
Molar mass 128.134 g·mol−1
Appearance white solid
Melting point 224–227 °C (435–441 °F; 497–500 K)
Hazards
GHS labelling:
Warning
H315, H319, H335
P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Safety

The LD50 (rat, oral) is 6400 mg/kg.

References

  1. Pollak, Peter; Romeder, Gérard; Hagedorn, Ferdinand; Gelbke, Heinz-Peter (2000). "Nitriles". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a17_363.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.