Methyl 4-hydroxy-5-methyl-1H-pyrrole-2-carboxylate CAS 203208-35-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 203208-35-9 |
| Molecular Formula | C7H9NO3 |
| Molecular Weight | 155.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl 4-hydroxy-5-methyl-1H-pyrrole-2-carboxylate (CAS 203208-35-9) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C7H9NO3. Molecular weight: 155.15 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C7H9NO3 |
| Molecular Weight | 155.15 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.) | 2015 |
| Nitrogen Atoms | 1 |
Related Methyl Standards
- N-Hydroxy-3,5-dimethylisoxazole-4-carboximidamide (CAS 102692-02-4)
- Methyl 3-hydroxy-1-methyl-1H-pyrrole-2-carboxylate (CAS 113602-62-3)
- N-Hydroxy-2,5-dimethylfuran-3-carboxamide (CAS 125309-45-7)
- 6-Hydroxy-2-((methylamino)methyl)pyrimidin-4(3h)-one (CAS 1339712-83-2)
- N-Hydroxy-1,5-dimethyl-1H-pyrazole-3-carboxamide (CAS 136678-99-4)
- N-Hydroxy-1,3-dimethyl-1H-pyrazole-5-carboxamide (CAS 136679-06-6)
- 2-Hydroxy-3-(1H-pyrrol-1-yl)propanoic acid (CAS 1466519-24-3)
- 3-Hydroxy-N,5-dimethylfuran-2-carboxamide (CAS 157070-43-4)
Recommended Standards
- Methyl 4-hydroxy-2-methyl-1H-pyrrole-3-carboxylate (CAS 505052-01-7)
- methyl 5-(aminomethyl)furan-2-carboxylate (CAS 73751-06-1)
- Methyl 4-formyl-2,3-dihydro-1H-pyrrole-2-carboxylate (CAS 222420-87-3)
- 5-(Naphthalen-1-yl)furan-2-carboxylic acid (CAS 201349-60-2)
- 4-(3,4-Dimethylphenyl)-6-(3-fluorophenyl)pyrimidin-2-amine (CAS 1354915-94-8)
- 4,7-Bis(4-methoxyphenyl)benzo[c][1,2,5]thiadiazole (CAS 503862-08-6)
- 4-Fluoro-3-methyl-5-nitrobenzoic acid (CAS 1341764-57-5)
- 5-(Tetrahydrofuran-2-yl)thiophene-2-carboxylic acid (CAS 959237-71-9)
- Monofucosyl-para-lacto-N-hexaose IV (CAS 115236-58-3)
- Tirzepatide Impurity 50 (CAS CATO-C4X-324050)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com