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

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

7,7,8,8-Tetracyanoquinodimethane is a bioactive small molecule carrying the CAS registry number 1518-16-7, specified at 98% purity. Its molecular formula is C12H4N4 and its molecular weight is 204.19 g/mol. Its systematic (IUPAC) name is 2-[4-(dicyanomethylidene)cyclohexa-2,5-dien-1-ylidene]propanedinitrile. It is also known as TCNQ or Tetracyanoquinodimethane.

In its supplied form it is yellow to orange to green to brown powder or crystals or chunks. Reported physical data include a melting point of 287-289 °C (dec.). Store sealed in a dry, well-ventilated location away from incompatible materials. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

Key uses span cell signalling research, pharmacological screening, target validation and solar and photovoltaic research. Buyers come mainly from academic and industrial research and diagnostics and biotechnology.

We offer 7,7,8,8-Tetracyanoquinodimethane in 1 g, 5 g, 10 g and 25 g packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Cell signalling research
Pharmacological screening
Target validation
Solar & photovoltaic research

Industries

Specifications & identifiers

Chemical identifiers
Product name	7,7,8,8-Tetracyanoquinodimethane, 98%
Catalogue No.	VQ-002757
CAS Number	1518-16-7
IUPAC name	2-[4-(dicyanomethylidene)cyclohexa-2,5-dien-1-ylidene]propanedinitrile
Molecular formula	C₁₂H₄N₄
Molecular weight	204.19 g/mol
Exact mass	204.0436
Purity / assay	98%
HSN code	29269000
InChIKey	PCCVSPMFGIFTHU-UHFFFAOYSA-N
SMILES	C1=CC(=C(C#N)C#N)C=CC1=C(C#N)C#N
PubChem CID	73697

Physical properties
Physical form	Crystalline
Appearance	Yellow to orange to green to brown powder or crystals or chunks
Melting point	287-289 °C (dec.)
LogP (XLogP3)	1
H-bond donors / acceptors	0 / 4
TPSA	95.2 Å²
Synonyms	(2,5-Cyclohexadiene-1,4-diylidene)-dimalononitrile, TCNQ, 7,7,8,8-Tetracyanoquinodimethane, Tetracyanoquinodimethane, 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, 2,5-Cyclohexadiene-1,4-diylidenedimalononitrile, 2,5-Cyclohexadiene-delta(sup1alpha:4alpha)dimalononitrile

Safety & hazard information (GHS)

Toxic

Harmful / irritant

Signal word: Danger

Hazard statements

H301+H311+H331Toxic if swallowed, in contact with skin or if inhaled
H301Toxic if swallowed
H302Harmful if swallowed
H311Toxic in contact with skin
H331Toxic if inhaled
H332Harmful if inhaled

Precautionary statements: P261, P262, P264, P270, P271, P280, P301 + P316, P301 + P317, P302 + P352, P304 + P340, P316, P317, P321, P330, P361 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of 7,7,8,8-Tetracyanoquinodimethane, 98%?

The CAS Registry Number of 7,7,8,8-Tetracyanoquinodimethane, 98% is 1518-16-7. It is also known as (2,5-Cyclohexadiene-1,4-diylidene)-dimalononitrile, TCNQ, 7,7,8,8-Tetracyanoquinodimethane.

What is the molecular formula and molecular weight of 7,7,8,8-Tetracyanoquinodimethane, 98%?

7,7,8,8-Tetracyanoquinodimethane, 98% has the molecular formula C12H4N4 and a molecular weight of 204.19 g/mol. Its IUPAC name is 2-[4-(dicyanomethylidene)cyclohexa-2,5-dien-1-ylidene]propanedinitrile.

Which grade and pack sizes of 7,7,8,8-Tetracyanoquinodimethane, 98% can I order?

We supply 7,7,8,8-Tetracyanoquinodimethane, 98% in (98%) grade, in 1 g, 5 g, 10 g, 25 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 7,7,8,8-Tetracyanoquinodimethane, 98%?

Yes. Every lot of 7,7,8,8-Tetracyanoquinodimethane, 98% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can 7,7,8,8-Tetracyanoquinodimethane, 98% be shipped internationally?

Yes. 7,7,8,8-Tetracyanoquinodimethane, 98% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.