19813-55-9 Methyl 3-hydroxy-5-methoxy-2-thiophenecarboxylate methyl 3-hydroxy-5-methoxythiophene-2-carboxylate CAS 19813-55-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 19813-55-9 |
| Molecular Formula | C7H8O4S |
| Molecular Weight | 188.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
19813-55-9 Methyl 3-hydroxy-5-methoxy-2-thiophenecarboxylate methyl 3-hydroxy-5-methoxythiophene-2-carboxylate (CAS 19813-55-9) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C7H8O4S. Molecular weight: 188.20 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C7H8O4S |
| Molecular Weight | 188.20 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- Semaglutide impurity 249 (CAS CATO-C4X-2226249)
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