4-Methyl-3-oxo-3,4-dihydro-2H-benzo[b][1,4]thiazine-6-carboxylic acid CAS 272437-91-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 272437-91-9 |
| Molecular Formula | C10H9NO3S |
| Molecular Weight | 223.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Methyl-3-oxo-3,4-dihydro-2H-benzo[b][1,4]thiazine-6-carboxylic acid (CAS 272437-91-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C10H9NO3S. Molecular weight: 223.25 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C10H9NO3S |
| Molecular Weight | 223.25 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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