4-Ethynyl-1,4-dihydro-5-methyl-1-[(4-methylphenyl)sulfonyl]-2H-3,1-benzoxazin-2-one CAS 2236555-88-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 2236555-88-5 |
| Molecular Formula | C18H15NO4S |
| Molecular Weight | 341.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Ethynyl-1,4-dihydro-5-methyl-1-[(4-methylphenyl)sulfonyl]-2H-3,1-benzoxazin-2-one (CAS 2236555-88-5) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C18H15NO4S. Molecular weight: 341.38 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C18H15NO4S |
| Molecular Weight | 341.38 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Ethynyl Standards
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Recommended Standards
- 4-(Naphthalene-2-sulfonamidomethyl)benzoic acid (CAS 208176-29-8)
- 4-(4-Methoxyphenyl)-N-(2-methyl-4-nitrophenyl)thiazol-2-amine (CAS 685108-64-9)
- 4-(((6-Methoxyquinolin-3-yl)methylene)amino)benzenesulfonamide (CAS 62294-75-1)
- 2-(Difluoromethyl)-6-fluoro-3-methoxypyridine-4-methanol (CAS 1805458-46-1)
- N,N-Dimethyl-2-(3-(trifluoromethyl)phenoxy)ethanamine (CAS 1001541-07-6)
- 5-Amino-2-(2H-1,2,3-triazol-2-yl)nicotinonitrile (CAS 2097854-16-3)
- 3-(2-((3-Methylbutan-2-yl)amino)ethyl)thietane 1,1-dioxide (CAS 1860960-77-5)
- 2-Chloro-5-(5-isopropylbenzo[d]oxazol-2-yl)aniline (CAS 443292-38-4)
- Alpha,alpha-dithiocyanato-p-xylene (CAS 1014-99-9)
- Semaglutide Impurity 246 (CAS CATO-C4X-2226246)
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