2,1,3-Benzothiadiazole
2,1,3-Benzothiadiazole (CAS: 273-13-2), with the molecular formula C6H4N2S and a molecular weight of 136.17 g/mol, is a notable heterocyclic compound. It serves as a valuable building block in organic synthesis and chemical research. Its unique structural features make it an important intermediate for the development of various chemical entities and materials, particularly within the realm of thiadiazole chemistry.
- IUPAC
- Piazthiole
- Synonyms
- 273-13-2C6H4N2SPiazthiole

Organic Synthesis Intermediate
2,1,3-Benzothiadiazole is utilised as a key intermediate in the synthesis of more complex organic molecules. Its heterocyclic nature allows for diverse chemical transformations.
Chemical Research
This compound is employed in academic and industrial research settings to explore novel chemical reactions and develop new compounds with potential applications in materials science and pharmaceuticals.
Heterocyclic Chemistry
As a thiadiazole derivative, it is integral to research focusing on the synthesis and properties of heterocyclic systems, which are prevalent in many biologically active molecules.
| Molecular weight | 136.17 |
|---|---|
| Empirical formula | C6H4N2S |
| Assay | 98% |
| Boiling point | 206 °C(lit.) |
| Melting point | 42-44 °C(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Flash point | 95 °C / 203 °F |
| Water hazard class (WGK, DE) | 3 |
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 2,1,3-Benzothiadiazole used for?
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2,1,3-Benzothiadiazole is used as a building block in organic synthesis and for chemical research, particularly in the field of heterocyclic chemistry and thiadiazole derivatives.
What are the CAS number and molecular formula for 2,1,3-Benzothiadiazole?
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The CAS number for 2,1,3-Benzothiadiazole is 273-13-2, and its molecular formula is C6H4N2S.
What grade and purity does Tech Serve Solutions supply for 2,1,3-Benzothiadiazole?
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Tech Serve Solutions supplies 2,1,3-Benzothiadiazole with a minimum assay of 98%. We do not represent this product as USP, BP, or EP grade.
How should 2,1,3-Benzothiadiazole be handled safely?
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Handling requires appropriate personal protective equipment, including eyeshields, gloves, and a type N95 (US) or type P1 (EN143) respirator filter. It has a flash point of 95 °C (203 °F) and is classified under WGK Germany 3.
Is 2,1,3-Benzothiadiazole a controlled substance?
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The provided data does not indicate that 2,1,3-Benzothiadiazole is a controlled substance.
How is 2,1,3-Benzothiadiazole packed and shipped?
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Tech Serve Solutions, as a specialist global supplier and exporter, ensures appropriate packaging and shipping for chemicals like 2,1,3-Benzothiadiazole in compliance with international regulations.
How can I request a quote or sample of 2,1,3-Benzothiadiazole?
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To request a quote or sample, please contact our sales team through the website or designated contact channels, providing the product name and CAS number (273-13-2).
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