2-Carbomethoxy-3-thiophenesulfonyl chloride
2-Carbomethoxy-3-thiophenesulfonyl chloride (CAS: 59337-92-7; Formula: C6H5ClO4S2; MW: 240.68) is a heterocyclic building block essential for chemical synthesis. This compound, with a molecular weight of 240.68 g/mol, serves as a key intermediate in the creation of complex organic molecules. It is particularly valuable in research and development settings for constructing novel thiophene-based structures, contributing to advancements in various chemical and pharmaceutical fields.

Organic Synthesis Intermediate
Utilised as a versatile building block in the synthesis of complex organic molecules, particularly those containing the thiophene ring system. It facilitates the introduction of sulfonyl chloride and carbomethoxy functional groups.
Pharmaceutical Research
A valuable reagent in medicinal chemistry for the development of novel pharmaceutical candidates. Its structure can be incorporated into drug discovery programs aiming for new therapeutic agents.
Materials Science
Can be employed in the synthesis of functional materials where the thiophene moiety imparts specific electronic or optical properties. Useful for creating advanced polymers or organic electronic components.
| Molecular weight | 240.68 |
|---|---|
| Empirical formula | C6H5ClO4S2 |
| Assay | 95% |
| Storage temperature | 2-8°C |
| Melting point | 61-64 °C(lit.) |

Hazard statements
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 3261 8 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34 |
| Safety statements (S) | 26-27-36/37/39 |
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-Carbomethoxy-3-thiophenesulfonyl chloride used for?
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2-Carbomethoxy-3-thiophenesulfonyl chloride is primarily used as a building block in organic synthesis, particularly for creating thiophene-containing compounds in pharmaceutical research and materials science.
What are the CAS number and chemical formula for 2-Carbomethoxy-3-thiophenesulfonyl chloride?
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The CAS number is 59337-92-7 and the chemical formula is C6H5ClO4S2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Carbomethoxy-3-thiophenesulfonyl chloride with an assay of 95%. This product is supplied for research and chemical synthesis purposes and TSS does not represent it as USP, BP, EP, or any other pharmacopoeia grade.
How should 2-Carbomethoxy-3-thiophenesulfonyl chloride be handled?
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This compound is classified as Danger with hazard statement H314 (Causes severe skin burns and eye damage). Appropriate personal protective equipment, including eyeshields, face shields, chemical-resistant gloves, and respiratory protection, must be worn. Handle in a well-ventilated area and avoid contact with skin, eyes, and clothing.
Does Tech Serve Solutions export this chemical?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 2-Carbomethoxy-3-thiophenesulfonyl chloride.
How can I request a quote or sample?
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Please contact the Tech Serve Solutions sales team via our website or direct inquiry channels to request a quote or a sample of 2-Carbomethoxy-3-thiophenesulfonyl chloride.
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