3-Methyl-2-oxo-2,3-dihydro-1,3-benzoxazole-5-sulfonyl chloride
3-Methyl-2-oxo-2,3-dihydro-1,3-benzoxazole-5-sulfonyl chloride (CAS 78633-42-8) is a heterocyclic organic compound with the molecular formula C8H6ClNO4S and a molecular weight of 247.66 g/mol. This chemical serves as a valuable building block in organic synthesis, particularly for the construction of complex molecules containing the benzoxazole core. Its sulfonyl chloride functionality allows for versatile derivatization in chemical research and development.
- Synonyms
- 78633-42-8, C8H6ClNO4S

Organic Synthesis Intermediate
Utilised as a key intermediate in the synthesis of novel organic compounds. The sulfonyl chloride group facilitates reactions such as sulfonamide formation and sulfonate ester synthesis.
Heterocyclic Chemistry
A crucial building block for constructing halogenated and oxazole-containing heterocyclic systems. Applicable in the development of new chemical entities with potential biological activity.
Research and Development
Employed in academic and industrial research settings for exploring new synthetic pathways and developing novel materials or pharmaceutical candidates.
| Molecular weight | 247.66 |
|---|---|
| Empirical formula | C8H6ClNO4S |
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 3-Methyl-2-oxo-2,3-dihydro-1,3-benzoxazole-5-sulfonyl chloride used for?
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This compound is primarily used as a building block and intermediate in organic synthesis, particularly in the field of heterocyclic chemistry for research and development purposes.
What is the CAS number and molecular formula?
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The CAS number is 78633-42-8 and the molecular formula is C8H6ClNO4S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical as a research-grade compound. We do not represent it as USP, BP, or EP grade.
How should this chemical be handled safely?
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This compound is corrosive. Handle with appropriate personal protective equipment in a well-ventilated area to avoid contact with skin, eyes, and respiratory system. Refer to the Safety Data Sheet (SDS) for detailed handling instructions.
Can Tech Serve Solutions export this chemical?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals and can export this product.
How can I request a sample or quote?
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To request a sample or a quote, please contact our sales department via the website or by phone.
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