2-Oxo-2,3-dihydro-1,3-benzoxazole-5-sulfonyl chloride CAS 78633-41-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 78633-41-7 |
| Molecular Formula | C7H4ClNO4S |
| Molecular Weight | 233.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Oxo-2,3-dihydro-1,3-benzoxazole-5-sulfonyl chloride (CAS 78633-41-7) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C7H4ClNO4S. Molecular weight: 233.63 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C7H4ClNO4S |
| Molecular Weight | 233.63 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Oxo Standards
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Recommended Standards
- (4-Amino-3-chloro-5-methoxyphenyl)dimethylphosphine oxide (CAS 2883047-19-4)
- 2-Oxo-2,3-dihydrobenzoxazole-6-sulfonyl Chloride (CAS 27685-90-1)
- 2,6-Diformylpyridine-4-sulfonyl chloride (CAS 1393541-11-1)
- 2-(Bromomethyl)-1-methoxyanthracene-9,10-dione (CAS 63965-46-8)
- Cyclobenzaprine-d3 N-Oxide (CAS 1189877-07-3)
- 4,5-Dichloro-2-phenoxyaniline (CAS 85385-27-9)
- 4 6-(Dichloromethyl)-m-Xylene (CAS 1585-15-5)
- 927G6VJ94V 74115-12-1 5-Chloropyridin-3-ol EINECS 277-727-7 UNII-927G6VJ94V 3-Hydroxy-5-chloropyridine (CAS 74115-12-1)
- Ethyl 5-amino-1-benzyl-1,2,3,6-tetrahydropyridine-4-carboxylate (CAS 911010-88-3)
- Semaglutide Impurity 142 (CAS CATO-C4X-2226142)
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