3-Bromo-4-chlorobenzoyl chloride CAS 21900-34-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 21900-34-5 |
| Molecular Formula | C7H3BrCl2O |
| Molecular Weight | 253.91 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Bromo-4-chlorobenzoyl chloride (CAS 21900-34-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C7H3BrCl2O. Molecular weight: 253.91 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C7H3BrCl2O |
| Molecular Weight | 253.91 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Cl/Br-containing |
Related Bromo Standards
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Recommended Standards
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