Methyl 3-bromo-2-oxo-2H-pyran-5-carboxylate CAS 42933-07-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 42933-07-3 |
| Molecular Formula | C7H5BrO4 |
| Molecular Weight | 233.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl 3-bromo-2-oxo-2H-pyran-5-carboxylate (CAS 42933-07-3) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C7H5BrO4. Molecular weight: 233.02 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C7H5BrO4 |
| Molecular Weight | 233.02 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1969 |
| Halogen Content | Br-containing |
Related Methyl Standards
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Recommended Standards
- 6-Bromo-3-methoxy-2-nitropyridine (CAS 916737-76-3)
- Methyl 4-bromo-5-formylfuran-2-carboxylate (CAS 441016-56-4)
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- Benzyl 4-(benzylamino)piperidine-1-carboxylate hydrochloride (CAS 1203087-22-2)
- 7-Chloro-6-methoxy-2-methylbenzo[d]thiazole (CAS 2180719-30-4)
- (S)-4-Chloro-2,3-dihydro-1H-inden-1-amine hydrochloride (CAS 2109874-07-7)
- (R)-1-(4-Chlorophenyl)-2,2,2-trifluoro-N-methylethan-1-amine (CAS 2381393-10-6)
- 2-(4-Aminobenzo[d]oxazol-2-yl)acetic acid (CAS 1555879-95-2)
- Ethyl 4-(1,3-diphenyl-1H-pyrazol-4-yl)-6-methyl-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate (CAS 306281-18-5)
- Semaglutide impurity 84 (CAS CATO-C4X-222684)
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