Methyl 6-chloro-3-methoxypyrazine-2-carboxylate CAS 21874-55-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 21874-55-5 |
| Molecular Formula | C7H7ClN2O3 |
| Molecular Weight | 202.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl 6-chloro-3-methoxypyrazine-2-carboxylate (CAS 21874-55-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C7H7ClN2O3. Molecular weight: 202.60 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C7H7ClN2O3 |
| Molecular Weight | 202.60 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, 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; Light-sensitive; avoid direct strong light; 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.) | 1963 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
- Methyl 5-chloro-6-methoxypyridazine-3-carboxylate (CAS 2090663-96-8)
- Methyl-6-chloro-4-methoxypyridazine-3-carboxylate (CAS 679405-85-7)
- Methyl 5-chloro-4-formyl-1-methyl-1H-pyrazole-3-carboxylate (CAS 321848-41-3)
- Saikosaponin B3 (CAS 58316-42-0)
- 4-Amino-2,4-dihydro-5-(tetrahydro-2-furanyl)-3H-1,2,4-triazole-3-thione (CAS 697245-67-3)
- 2-(Piperidin-1-yl)-N-(p-tolyl)acetamide (CAS 5429-42-5)
- N-(4-amino-2,5-diethoxyphenyl)-2-methylbenzamide (CAS 483321-85-3)
- Ethyl 2-oxo-2-((3,4,5-trifluorophenyl)thio)acetate (CAS 1443309-70-3)
- Tert-butyl isopropyl(pyrrolidin-3-ylmethyl)carbamate (CAS 1353986-93-2)
- Semaglutide impurity 24 (CAS CATO-C4X-222624)
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