Tetracyanoquinodimethane

7,7,8,8-四氰基对苯醌二甲烷

Also known as: 2,2'-(2,5-Cyclohexadiene-1,4-diylidene)dimalononitrile, 2,2'-(2,5-cyclohexadiene-1,4-diylidene)bismalononitrile, 2,2'-(Cyclohexa-2,5-diene-1,4-diylidene)dimalononitrile, 2,2'-Cyclohexa-2,5-diene-1,4-diylidenedimalononitrile, 2,2'-cyclohexa-2,5-diene-1,4-diylidenedipropanedinitrile, 2,5-Cyclohexadiene-delta(sup1alpha:4alpha)dimalononitrile, 2-[4-(dicyanomethylidene)cyclohexa-2,5-dien-1-ylidene]propanedinitrile, 2-[4-(dicyanomethylidene)cyclohexa-2,5-dienyliden]malononitrile, 7,7',8,8'-Tetracyanoquinodimethane, 7,7,8,8-Tetracyano-1,4-chinodimethan, 7,7,8,8-Tetracyano-1,4-quinodimethan, 7,7,8,8-Tetracyano-p-quinodimethane, 7,7,8,8-Tetracyanodimethan, 7,7,8,8-Tetracyanoquinodimethane, Tetracyano p-Quinone Dimethane, tetracyanoquinodimethane, TCNQ, Propanedinitrile, 2,2'-(2,5-cyclohexadiene-1,4-diylidene)bis-

Tetracyanoquinodimethane (CAS 1518-16-7) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C12H4N4 and a molecular weight of 204.187 g/mol. It is also known as 2,2'-(2,5-Cyclohexadiene-1,4-diylidene)dimalononitrile, 2,2'-(2,5-cyclohexadiene-1,4-diylidene)bismalononitrile and 2,2'-(Cyclohexa-2,5-diene-1,4-diylidene)dimalononitrile. Key properties include a melting point of 287-289 °C (dec.)(lit.), a boiling point of 254.7±40.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 99.7±21.2 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H311 — Toxic in contact with skin and H331 — Toxic if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

1518-16-7

Jingsj CID

J-46810-9

Molecular Formula

C₁₂H₄N₄

Chinese Name

7,7,8,8-四氰基对苯醌二甲烷

Molecular Weight

204.187 g/mol

Category

Ketones

Last updated

8/21/2026