4-Chloro-5-((prop-2-yn-1-ylthio)methyl)isoxazol-3(2H)-one CAS 89660-99-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 89660-99-1 |
| Molecular Formula | C7H6ClNO2S |
| Molecular Weight | 203.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Chloro-5-((prop-2-yn-1-ylthio)methyl)isoxazol-3(2H)-one (CAS 89660-99-1) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C7H6ClNO2S. Molecular weight: 203.65 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C7H6ClNO2S |
| Molecular Weight | 203.65 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 4-Chloro-5-((prop-1-yn-1-ylthio)methyl)isoxazol-3(2H)-one (CAS 89661-00-7)
- 5-Chloro-2-(methylthio)pyrimidine-4-carboxamide (CAS 902243-56-5)
- 4-Chloro-2-(methylthio)pyrimidine-5-carboxamide (CAS 880613-19-4)
- Ethyl 4-chloro-3-(trifluoromethyl)benzoate (CAS 773134-81-9)
- Tavaborole Impurity 12 (CAS 174671-93-3)
- 7-(Diethylamino)-N-(2-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)ethyl)-2-oxo-2H-chromene-3-carboxamide (CAS 156571-46-9)
- 4-(difluoromethyl)-2-ethyl-2,7-dihydro-6h-pyraZolo[3,4-b]pyridin-6-one (CAS 1018165-18-8)
- (S)-2,5-Dioxopyrrolidin-1-yl 2-(((benzyloxy)carbonyl)amino)-3-(4-(benzyloxy)phenyl)propanoate (CAS 52773-66-7)
- Favipiravir Impurity 22 HCl (CAS 30250-67-0)
- D-Ala18-Tirzepatide (CAS CATO-CPTD788916)
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