7,7,8,8-四氰基醌二甲烷

Description

7,7,8,8-Tetracyanoquinodimethane · CAS 1518-16-7 · C12H4N4. UNII HC6FB4H2KW.

Identification

CAS Registry Number	1518-16-7
PubChem CID	73697
Molecular formula	C12H4N4
IUPAC name	2-[4-(dicyanomethylidene)cyclohexa-2,5-dien-1-ylidene]propanedinitrile
UNII (FDA)	HC6FB4H2KW

Computed Descriptors

Molecular Weight	204.19
XLogP3	1
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	0
Exact Mass	204.043596145
Monoisotopic Mass	204.043596145
Topological Polar Surface Area	95.2
Heavy Atom Count	16
Formal Charge	0

Physical description & handling notes

• Green crystalline solid; [Alfa Aesar MSDS]

GHS Hazard Classification

Reported hazard statements	H301, H311, H331 (87%), H302 (10.9%), H332 (10.9%)

Documented Uses

• Synthetic Polymer MALDI Matrix Compounds
• Tetracyanoquinodimethane is an electron-acceptor that is used to prepare charge transfer salts, which are of interest in the area of molecular electronics. (L614)
• Propanedinitrile, 2,2'-(2,5-cyclohexadiene-1,4-diylidene)bis-: ACTIVE
• 228 to 300 milligrams for an adult human (cyanide salts). (T86)
• Organic nitriles are converted into cyanide ions through the action of cytochrome P450 enzymes in the liver. Cyanide is rapidly absorbed and distributed throughout the body. Cyanide is mainly metabolized into thiocyanate by either rhodanese or 3-mercaptopyruvate sulfur transferase. Cyanide metabolites are excreted in the urine. (L96)

Synonyms

1518-16-7; 7,7,8,8-Tetracyanoquinodimethane; TCNQ; Tetracyanoquinodimethane; Tetracyanoquinodimethan; Tetracyano-p-quinodimethane; Propanedinitrile, 2,2'-(2,5-cyclohexadiene-1,4-diylidene)bis-; Tetracyanoquinodimethan(e); 7,7,8,8-Tetracyano-p-quinodimethane; 7,7,8,8-Tetracyano-1,4-quinodimethan; 7,7',8,8'-Tetracyanoquinodimethane; 2-[4-(dicyanomethylidene)cyclohexa-2,5-dien-1-ylidene]propanedinitrile; 2,5-Cyclohexadiene-1,4-diylidenedimalononitrile; HC6FB4H2KW; 2,5-Cyclohexadiene-delta(sup1alpha:4alpha)dimalononitrile; NSC-105237

Frequently Asked Questions

What are the CAS number and molecular formula of 7,7,8,8-Tetracyanoquinodimethane?

CAS 1518-16-7; molecular formula C12H4N4; molecular weight — g/mol.

What other names is 7,7,8,8-Tetracyanoquinodimethane known by?

1518-16-7, 7,7,8,8-Tetracyanoquinodimethane, TCNQ, Tetracyanoquinodimethane, Tetracyanoquinodimethan, Tetracyano-p-quinodimethane.

Is 7,7,8,8-Tetracyanoquinodimethane classified as hazardous?

Hazard statements reported: H301, H311, H331, H302, H332.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.