Substance
ID:714473
Names and Identifiers
IUPAC name
2-[4-(dicyanomethylidene)cyclohexa-2,5-dien-1-ylidene]propanedinitrile
IUPAC Traditional name
tetracyanoquinodimethane
Synonyms
7,7,8,8-TetracyanoquinodimethaneTCNQ7,7,8,8-四氰基对醌二甲烷
Registration numbers
CAS Number
MDL Number
EC Number
Beilstein Number
Properties
Safety Information
GHS Precautionary statements
P261-P280-P302+P352-P321-P405-P501A
Risk Statements
20/21/22
Hazard Class
6.1
UN Number
UN3439
RTECS
GU4850000
Packing Group
III
European Hazard Symbols
Harmful (X)TSCA Listed
是
GHS Hazard statements
H331-H302-H312
GHS Pictograms
Acute toxicity (oral, dermal, inhalation), categories 1,2,3
Safety Statements
36/37
Physical Property
Melting Point
ca 288°C dec.
Product Information
Purity
98%
Molecule Details
No Data Available
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Molecular Spectra
No Data Available
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References
• Electron-acceptor, forming stable radical anions: J. Am. Chem. Soc., 82, 6408 (1960); 84, 3370, 3374 (1962).
• Effective catalyst for the ɑ-chlorination of carboxylic acids using chlorosulfonic acid; the presence of TCNQ suppresses competing free-radical chlorination: J. Org. Chem., 48, 1364 (1983).
• For a review of the differences between "metallic" and "non-metallic" salts of TCNQ, see: Acc. Chem. Res., 12, 79 (1979).
• Forms charge-transfer complexes with electron-rich donors: J. Am. Chem. Soc., 95, 948 (1973).