2-oxo-2,3-dihydro-1,3-oxazole-4-carboxylic acid CAS 406183-40-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 406183-40-2 |
| Molecular Formula | C4H3NO4 |
| Molecular Weight | 129.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-oxo-2,3-dihydro-1,3-oxazole-4-carboxylic acid (CAS 406183-40-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C4H3NO4. Molecular weight: 129.07 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C4H3NO4 |
| Molecular Weight | 129.07 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 3-Oxo-2,3-dihydroisoxazole-4-carboxylic acid (CAS 178316-78-4)
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- Methyl 2-(4-methoxyphenoxy)propanoate (CAS 69033-92-7)
- 4-Methoxy-3-((3-methylpiperidin-1-yl)methyl)benzaldehyde (CAS 1119449-75-0)
- Cinnamylamine Hydrochloride (CAS 17480-08-9)
- Semaglutide impurity 249 (CAS CATO-C4X-2226249)
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