5-Ethoxy-4-methyl-3-phenyloxazol-2(3H)-one CAS 494779-58-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 494779-58-7 |
| Molecular Formula | C12H13NO3 |
| Molecular Weight | 219.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Ethoxy-4-methyl-3-phenyloxazol-2(3H)-one (CAS 494779-58-7) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C12H13NO3. Molecular weight: 219.24 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C12H13NO3 |
| Molecular Weight | 219.24 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 5-Ethoxy-3-methyl-1h-indole-2-carboxylic acid (CAS 57291-56-2)
- 5-Ethyl-1,7-dimethylpyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione (CAS 479579-10-7)
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- 2-Methyl-5-(trifluoromethyl)benzoic acid (CAS 13055-63-5)
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- N'-(3-chloropropanoyl)-4-fluorobenzohydrazide (CAS 1823188-48-2)
- 2-Ethyl-6-methoxy-2H-pyran-3(6H)-one (CAS 60249-14-1)
- 4-[2-(2-{2-methoxy-5-[(Z)-2-(3,4,5-trimethoxyphenyl)ethenyl]phenoxy}ethoxy)ethoxy]-1-(4-methylbenzenesulfonyl)-1H-indole (CAS 478077-90-6)
- Insulin Degludec Impurity 6 (CAS CATO-C4X-21576)
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