5-(Methylsulfonyl)benzo[d]oxazol-2(3H)-one CAS 13920-98-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 13920-98-4 |
| Molecular Formula | C8H7NO4S |
| Molecular Weight | 213.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5-(Methylsulfonyl)benzo[d]oxazol-2(3H)-one (CAS 13920-98-4), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C8H7NO4S. Molecular weight: 213.21 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C8H7NO4S |
| Molecular Weight | 213.21 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 2-Hydroxy-1H-benzo[d]imidazole-4-sulfonamide (CAS 1378260-67-3)
- 5-(4-Fluoronaphthalen-1-yl)oxazole (CAS 1394023-29-0)
- 2-[(4-fluorophenyl)amino]pyridine-4-carbonitrile (CAS 137225-11-7)
- 2-Amino-5-methyl-4-(4-nitrophenyl)thiophene-3-carbonitrile (CAS 605661-11-8)
- 3-(2,4-Dichlorobenzoyl)-5-(3,4-dichlorobenzylidene)-2-thioxoimidazolidin-4-one (CAS 732288-03-8)
- 4-Bromo-2-fluoro-N-propylbenzamide (CAS 1016811-41-8)
- DL-Lysine-2- (CAS 617-68-5)
- (S)-3-((tert-butoxycarbonyl)amino)-2-(3-chlorobenzyl)propanoic acid (CAS 1260592-60-6)
- 5-Bromo-2-methoxybenzimidamide (CAS 144650-00-0)
- Semaglutide Impurity 161 (x TFA Salt) (CAS CATO-C4X-2226161)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com