Methyl 5-(thiophen-3-yl)isoxazole-3-carboxylate CAS 657425-23-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 657425-23-5 |
| Molecular Formula | C9H7NO3S |
| Molecular Weight | 209.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl 5-(thiophen-3-yl)isoxazole-3-carboxylate (CAS 657425-23-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C9H7NO3S. Molecular weight: 209.22 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C9H7NO3S |
| Molecular Weight | 209.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, 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.) | 1985 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 5-Methyl-2-(thiophen-2-yl)-1,3-oxazole-4-carboxylic acid (CAS 1016526-89-8)
- 2-[2-(thiophen-2-yl)-1,3-oxazol-4-yl]acetic acid (CAS 1082414-36-5)
- 5-Methyl-3-(thiophen-2-yl)isoxazole-4-carboxylic acid (CAS 83817-53-2)
- 5-Methyl-3-(thiophen-3-yl)-1,2-oxazole-4-carboxylic acid (CAS 943131-05-3)
- Methyl 5-(thiophen-2-yl)oxazole-4-carboxylate (CAS 85210-60-2)
- 1-(Thiophen-2-ylmethyl)-1h-1,2,3-triazole-4-carboxylic acid (CAS 1284940-06-2)
- 1-(Thiophen-3-ylmethyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1456462-38-6)
- 5-(Thiophen-2-yl)isoxazole-3-carbohydrazide (CAS 90004-25-4)
Recommended Standards
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- Methyl 5-fluoro-1,2,3,4-tetrahydroquinoline-8-carboxylate (CAS 928839-61-6)
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