Tetrachlorophthalonitrile
Tetrachlorophthalonitrile (CAS: 1953-99-7; Formula: C6Cl4-1,2-(CN)2) is a chemical compound with a molecular weight of 265.91 g/mol. It is primarily utilised as a reagent or intermediate in chemical synthesis. Its applications span various scientific disciplines, often related to the development of dyes and stains due to its specific chemical structure. Supplied by TSS with an assay of 98%, it serves research and industrial purposes.
- Synonyms
- 2,3-Dicyano-1,1,2,3,4,4-hexachlorocyclohexa-1,5-diene-1,2-dicarbonitrileTetracyanotetrachlorobenzene

Chemical Synthesis Intermediate
Tetrachlorophthalonitrile serves as a valuable intermediate in the synthesis of more complex organic molecules. Its reactive nitrile groups and chlorinated aromatic ring allow for diverse chemical transformations.
Dye and Stain Development
This compound is associated with the field of stains and dyes, indicating its potential use in the development or synthesis of colourants for various applications, including biological staining.
Research and Development
In laboratory settings, Tetrachlorophthalonitrile is employed in research and development activities. Its specific chemical properties make it useful for exploring new synthetic pathways or material properties.
| Molecular weight | 265.91 |
|---|---|
| Linear formula | C6Cl4-1,2-(CN)2 |
| Assay | 98% |
| Melting point | 249-252 °C (dec.)(lit.) |

Hazard statements
- H312Harmful in contact with skin
- H332Harmful if inhaled
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/21/22 |
| Safety statements (S) | 36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Tetrachlorophthalonitrile used for?
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Tetrachlorophthalonitrile (CAS: 1953-99-7) is used as an intermediate in chemical synthesis and in the development of dyes and stains for research and industrial applications.
What is the CAS number and chemical formula for Tetrachlorophthalonitrile?
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The CAS number for Tetrachlorophthalonitrile is 1953-99-7, and its linear formula is C6Cl4-1,2-(CN)2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Tetrachlorophthalonitrile with an assay of 98%. This product is typically considered a research or technical grade and is not represented as USP, BP, or EP grade.
How should Tetrachlorophthalonitrile be handled safely?
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Tetrachlorophthalonitrile is classified with warning signals, indicating it is harmful if swallowed or inhaled. Appropriate personal protective equipment, including a dust mask (N95), eyeshields, and gloves, should be used when handling this compound. Ensure adequate ventilation.
How is Tetrachlorophthalonitrile packed, shipped, and exported?
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Tetrachlorophthalonitrile is carefully packed to ensure stability during transit and is available for export globally by Tech Serve Solutions, adhering to all relevant shipping regulations.
How can I request a quote or sample of Tetrachlorophthalonitrile?
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To request a quote or a sample of Tetrachlorophthalonitrile, please contact the Tech Serve Solutions sales team via our website or direct inquiry channels.
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