Methyl 5-(hydroxymethyl)isoxazole-3-carboxylate CAS 139297-55-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 139297-55-5 |
| Molecular Formula | C6H7NO4 |
| Molecular Weight | 157.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl 5-(hydroxymethyl)isoxazole-3-carboxylate (CAS 139297-55-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C6H7NO4. Molecular weight: 157.12 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C6H7NO4 |
| Molecular Weight | 157.12 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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 |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 2-Amino-3,5-difluorobenzaldehyde (CAS 1378795-86-8)
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- Avanafil Impurity 43 (CAS CATO-C4X-1118143)
- 75-22-9 Boron, (N,N-dimethylmethanamine)trihydro-, (T-4)- Methanamine, N,N-dimethyl-, compd. with borane (1:1) Methanamine, N,N-dimethyl-, compound with borane (1:1) Trimethylamine borane (1:1) Trimethylamine, compd. with borane (1:1) (8CI) AI3-60246 Borane, compd. with N,N-dimethylmethanamine (1:1) Borane, compd. with trimethylamine (1:1) (N,N-Dimethylmethanamine)trihydroboron EINECS 200-850-4 NSC 10220 TMAB Trimethylamine borane Trimethylamine, boron complex Trimethylamine, compd. with borane (1:1) (CAS 75-22-9)
- 4-Chloro-2-ethoxybenzo[d]oxazole (CAS 1803837-50-4)
- D-[Thr]7-Liraglutide (CAS CATO-C4X-199237)
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