3,5-Dichloro-4-fluoro-2-hydroxybenzoic acid CAS 189283-53-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 189283-53-2 |
| Molecular Formula | C7H3Cl2FO3 |
| Molecular Weight | 225.00 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,5-Dichloro-4-fluoro-2-hydroxybenzoic acid (CAS 189283-53-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C7H3Cl2FO3. Molecular weight: 225.00 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C7H3Cl2FO3 |
| Molecular Weight | 225.00 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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.) | 2011 |
| Halogen Content | F/Cl-containing |
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- Darunavir Impurity 37 (CAS 159005-61-5)
- 4-Bromobenzyl Chloride (CAS 589-17-3)
- Semaglutide Impurity 7 (CAS CATO-C4X-22267)
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