3,4,5,6-Tetrachlorophthalonitrile

3,4,5,6-四氯邻苯二甲腈

Also known as: 3,4,5,6-Tetrachlorobenzene-1,2-dicarbonitrile, Tetrachlorophthalonitrile, Perchlorophthalonitrile, Tetrachlorophthalodinitrile, 1,2-Dicyano-3,4,5,6-tetrachlorobenzene, 3,4,5,6-Tetrachloro-1,2-benzenedicarbonitrile, Tetrachloro-o-phthalodinitrile

3,4,5,6-Tetrachlorophthalonitrile (CAS 1953-99-7) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8Cl4N2 and a molecular weight of 265.91100 g/mol. It is also known as 3,4,5,6-Tetrachlorobenzene-1,2-dicarbonitrile, Tetrachlorophthalonitrile and Perchlorophthalonitrile. Key properties include a melting point of 249-252 °C (dec.)(lit.), a boiling point of 353.9ºC at 760 mmHg, a density of 1.71 g/cm3 and a flash point of 156ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

1953-99-7

Jingsj CID

J-1104345-8

Molecular Formula

C₈Cl₄N₂

Chinese Name

3,4,5,6-四氯邻苯二甲腈

Molecular Weight

265.91100 g/mol

Category

Aromatic Hydrocarbons

Last updated

8/21/2026