Isoxazol-5(2H)-one CAS 43228-53-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 43228-53-1 |
| Molecular Formula | C3H3NO2 |
| Molecular Weight | 85.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Isoxazol-5(2H)-one (CAS 43228-53-1) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C3H3NO2. Molecular weight: 85.06 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C3H3NO2 |
| Molecular Weight | 85.06 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1969 |
| Nitrogen Atoms | 1 |
Related Isoxazol Standards
Recommended Standards
- Isocyanoacetic Acid (CAS 71804-44-9)
- 3(2H)-Isoxazolone (CAS 5777-20-8)
- Oxazol-2(5H)-one (CAS 64121-01-3)
- 6-(Azepan-1-yl)-4-methylnicotinaldehyde (CAS 1355178-91-4)
- 3-(2-(Benzylthio)-4-methyl-6-oxo-1,6-dihydropyrimidin-5-yl)propanoic acid (CAS 905088-02-0)
- 4-(Isopentyloxy)pyridin-3-amine (CAS 1040315-94-3)
- Lithium triisopropyl 2-(5-chloropyridyl)borate (CAS 1256364-35-8)
- (S)-3-Amino-3-(4-hydroxyphenyl)propanoic acid hydrochloride (CAS 54732-46-6)
- Zanthobisquinolone (CAS 57147-67-8)
- Liraglutide Impurity 31 (CAS CATO-C4X-199231)
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