7-Methyl-1,4-benzothiazin-3(4H)-one
7-Methyl-1,4-benzothiazin-3(4H)-one (CAS: 30322-02-2) is a heterocyclic organic compound with the molecular formula C9H9NOS and a molecular weight of 179.24 g/mol. Supplied by TSS at a minimum purity of 97%, this compound serves as a valuable building block in chemical synthesis. Its benzothiazine core makes it a useful intermediate for the development of novel chemical entities within research and development laboratories.
- Synonyms
- C9H9NOS

Chemical Synthesis Intermediate
Utilised as a key intermediate in the synthesis of more complex organic molecules. Its structure allows for diverse functionalisation pathways, making it a versatile component in multi-step synthetic routes.
Heterocyclic Chemistry Research
A useful building block for researchers exploring novel heterocyclic compounds. The benzothiazine scaffold is present in various biologically active molecules, driving interest in its synthetic applications.
Pharmaceutical Intermediate Development
Serves as a precursor in the exploratory synthesis of potential pharmaceutical agents. Its chemical structure may contribute to the development of compounds with therapeutic potential.
| Molecular weight | 179.24 |
|---|---|
| Empirical formula | C9H9NOS |
| Assay | 97% |
| Melting point | 207-209 °C(lit.) |

Hazard statements
- H317May cause an allergic skin reaction
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 43 |
| Safety statements (S) | 36/37 |
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 7-Methyl-1,4-benzothiazin-3(4H)-one used for?
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7-Methyl-1,4-benzothiazin-3(4H)-one is primarily used as a building block and intermediate in chemical synthesis, particularly in the exploration of novel heterocyclic compounds and potential pharmaceutical agents.
What are the CAS number and molecular formula for 7-Methyl-1,4-benzothiazin-3(4H)-one?
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The CAS number is 30322-02-2, and the molecular formula is C9H9NOS.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 7-Methyl-1,4-benzothiazin-3(4H)-one with a minimum assay of 97%. We do not represent this product as USP, BP, EP, or pharmacopoeia grade.
How should 7-Methyl-1,4-benzothiazin-3(4H)-one be handled?
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Handling requires appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, faceshields, and gloves. It is classified as a Warning with hazard statement H317 (May cause an allergic skin reaction). Ensure good ventilation and avoid dust formation.
Is 7-Methyl-1,4-benzothiazin-3(4H)-one shipped internationally?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including 7-Methyl-1,4-benzothiazin-3(4H)-one.
How can I request a quote or sample for 7-Methyl-1,4-benzothiazin-3(4H)-one?
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Please contact our sales team directly through the website or by phone to request a quotation or inquire about obtaining a sample.
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