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7,7,8,8-Tetracyanoquinodimethane, 98%

Catalog No. AAA1077914
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Quantity:
5 g
25 g

CAS: 1518-16-7 | C12H4N4 | 204.192 g/mol

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.
TRUSTED_SUSTAINABILITY

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

Specifications

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
Hazard Category H301+H311+H331-H332
Hazard Statement GHS H Statement
H331-H302-H312
Toxic if inhaled.
Harmful if swallowed.
Harmful in contact with skin.
Precautionary Statement P261-P264b-P270-P271-P280-P301+P310-P302+P352-P304+P340-P311-P312-P330-P361-P363-P501c
DOTInformation Transport Hazard Class: 6.1; Packing Group: III; Proper Shipping Name: NITRILES, SOLID, TOXIC, N.O.S.
EINECSNumber 216-174-8
RTECSNumber GU4850000
TSCA Yes
Recommended Storage Ambient temperatures

RUO – Research Use Only

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