5-Bromo-2,3-dichlorobenzoic acid CAS 501009-14-9
| CAS No. | 501009-14-9 |
| Molecular Formula | C7H3BrCl2O2 |
| Molecular Weight | 269.91 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Bromo-2,3-dichlorobenzoic acid (C7H3BrCl2O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
5-Bromo-2,3-dichlorobenzoic acid (CAS 501009-14-9) is a high-purity analytical reference standard with the molecular formula C7H3BrCl2O2 and a molecular weight of 269.91 g/mol.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 5-Bromo-2,3-dichlorobenzoic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C7H3BrCl2O2 |
| Molecular Weight | 269.91 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; 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.) | 1984 |
| Halogen Content | Cl/Br-containing |
Related Bromo Standards
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Recommended Standards
- 5-Bromo-2,2-dichlorobenzo[d][1,3]dioxole (CAS 33070-31-4)
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- 4-Bromo-2,6-dichlorobenzoic Acid (CAS 232275-51-3)
- 1,2-Dibromoethane-1-sulfonyl fluoride (CAS 103020-97-9)
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