4-Bromo-2-hydroxybenzoic acid CAS 1666-28-0
Purity >95%In StockPharmaceutical Standards
| CAS No. | 1666-28-0 |
| Molecular Formula | C7H5BrO3 |
| Molecular Weight | 217.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Bromo-2-hydroxybenzoic acid (CAS 1666-28-0) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C7H5BrO3. Molecular weight: 217.02 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C7H5BrO3 |
| Molecular Weight | 217.02 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| 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.) | 1957 |
| Halogen Content | Br-containing |
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- Tirzepatide Impurity 13 (CAS CATO-C4X-324013)
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