4,5-Dibromo-2-chlorobenzoic acid CAS CATO-C4X-20757
| CAS No. | CATO-C4X-20757 |
| Molecular Formula | C7H3Br2ClO2 |
| Molecular Weight | 314.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4,5-Dibromo-2-chlorobenzoic acid (CAS CATO-C4X-20757), molecular formula C7H3Br2ClO2 and molecular weight 314.36 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system, 4,5-Dibromo-2-chlorobenzoic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 314.36 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C7H3Br2ClO2 |
| Molecular Weight | 314.36 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature |
| 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 |
| Halogen Content | Cl/Br-containing |
Related Dibromo Standards
- 2,6-Dibromo-4-chlorobenzoic acid (CAS 188663-74-3)
- 2,5-Dibromo-4-chlorobenzoic acid (CAS 2385821-34-9)
- 2,6-Dibromo-4-chloro-3,5-dimethylphenol (CAS 175204-32-7)
- 1,2-Dibromo-3-chloro-4-ethoxybenzene (CAS 1881331-90-3)
- 1,3-Dibromo-2-(2-chloroethoxy)benzene (CAS 281678-66-8)
- 1,3-Dibromo-5-chloro-2-ethoxybenzene (CAS 861338-04-7)
- 1,5-Dibromo-3-chloro-2-ethoxybenzene (CAS 876486-37-2)
- (R)-2,2-dibromo-1-(4-chlorophenyl)ethan-1-ol (CAS CATO-C3D-262968)
Recommended Standards
- Parecoxib sodium Impurity 9 (CAS 1373038-56-2)
- Benzbromarone Impurity 14 (CAS 77823-55-3)
- Parecoxib Impurity 6 (CAS CATO-C4X-15916)
- Benzbromarone Impurity 8 (CAS 27003-05-0)
- 1-(1-(2,2-Difluoroethyl)-1H-pyrazol-4-yl)-N-methylmethanamine (CAS 1343036-98-5)
- 90989-93-8 [2-acetyloxy-3-[2-aminoethoxy(hydroxy)phosphoryl]oxypropyl] acetate (CAS 90989-93-8)
- (2-Chloro-4-(3-methylpiperidine-1-carbonyl)phenyl)boronic acid (CAS 1449132-47-1)
- Methyl (r)-3-amino-3-(furan-3-yl)propanoate (CAS 1213686-75-9)
- 2-Acetyl-3-aminoisonicotinic acid (CAS 1393584-33-2)
- (S)-2-(1-methylpyrrolidin-3-yl)ethan-1-ol (CAS 1932399-27-3)
- Azelastine impurity 56 (CAS CATO-C4X-139656)
- 4-(4-Fluorophenyl)-1-methylpyrrolidine-3-carboxylic acid (CAS 1706442-05-8)
- (3-Morpholinopyridin-2-yl)methanamine (CAS 780802-31-5)
- Mast Cell Degranulating Peptide HR-1 (CAS 80533-94-4)
Why CATO?
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