5-Chloro-2-methoxy-4-methylbenzoic acid CAS 28478-41-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 28478-41-3 |
| Molecular Formula | C9H9ClO3 |
| Molecular Weight | 200.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Chloro-2-methoxy-4-methylbenzoic acid (CAS 28478-41-3) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C9H9ClO3. Molecular weight: 200.62 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C9H9ClO3 |
| Molecular Weight | 200.62 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 |
| 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.) | 1965 |
| Halogen Content | Cl-containing |
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Recommended Standards
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- 5-Chloro-2-methoxybenzohydrazide (CAS 33977-11-6)
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- dimethyl[2-(pyrrolidin-3-yl)ethyl]amine dihydrochloride (CAS 2060006-15-5)
- 2-(Bromomethyl)-5-fluorophenylhydrazine (CAS 1806512-85-5)
- N-Benzyl-1-(thiophen-2-yl)pentan-1-amine (CAS 165277-48-5)
- 2-Amino-N-((1-benzylpiperidin-4-yl)methyl)-N-ethylacetamide (CAS 1353957-67-1)
- 4-(Trifluoromethoxy)benzyl Alcohol (CAS 1736-74-9)
- 1,3-dimethylpiperazin-2-one;hydrochloride (CAS 1219425-22-5)
- Semaglutide impurity 250 (CAS CATO-C4X-2226250)
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