7,7,8,8-Tetracyanoquinodimethane, 98%, Thermo Scientific Chemicals

Description

7,7,8,8-Tetracyanoquinodimethane is an electron-acceptor molecule used to form charge-transfer superconductors. It is an effective catalyst used for the ?-chlorination of carboxylic acids using chlorosulfonic acid; the presence of TCNQ suppresses competing free-radical chlorination.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
7,7,8,8-Tetracyanoquinodimethane is an electron-acceptor molecule used to form charge-transfer superconductors. It is an effective catalyst used for the ɑ-chlorination of carboxylic acids using chlorosulfonic acid; the presence of TCNQ suppresses competing free-radical chlorination.

Solubility
Insoluble in water.

Notes
Keep container tightly sealed. Store in cool, dry conditions in well sealed containers. Incompatible with oxidizing agents.

Specifications

Chemical Identifiers

• CAS: 1518-16-7
• Molecular Formula: C12H4N4
• Molecular Weight (g/mol): 204.192
• MDL Number: MFCD00011664
• InChI Key: PCCVSPMFGIFTHU-UHFFFAOYSA-N
• Synonym: 7,7,8,8-tetracyanoquinodimethane, tcnq, tetracyanoquinodimethane, tetracyanoquinodimethan, 2,2'-cyclohexa-2,5-diene-1,4-diylidene dimalononitrile, tetracyano-p-quinodimethane, tetracyanoquinodimethan e, quinodimethan, tetracyano, propanedinitrile, 2,2'-2,5-cyclohexadiene-1,4-diylidene bis, 7,7,8,8-tetracyano-p-quinodimethane
• PubChem CID: 73697
• ChEBI: CHEBI:52445
• IUPAC Name: 2-[4-(dicyanomethylidene)cyclohexa-2,5-dien-1-ylidene]propanedinitrile
• SMILES: C1=CC(=C(C#N)C#N)C=CC1=C(C#N)C#N

• Melting Point: ∼288°C (decomposition)
• Quantity: 25 g
• UN Number: UN3439
• Beilstein: 611604
• Solubility Information: Insoluble in water.
• Formula Weight: 204.19
• Percent Purity: 98%
• Chemical Name or Material: 7,7,8,8-Tetracyanoquinodimethane

RUO – Research Use Only