Benzbromarone Impurity 15 CAS 79302-23-1
| CAS No. | 79302-23-1 |
| Molecular Formula | C10H11Br2ClO2Si |
| Molecular Weight | 386.54 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system, Benzbromarone Impurity 15 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 386.54 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Benzbromarone Impurity 15 (CAS 79302-23-1) is a certified pharmaceutical impurity reference standard with the molecular formula C10H11Br2ClO2Si and a molecular weight of 386.54 g/mol.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
As a certified reference material (CRM), Benzbromarone Impurity 15 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 | C10H11Br2ClO2Si |
| Molecular Weight | 386.54 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | Cl/Br-containing |
Related Benzbromarone Standards
- Benzbromarone Impurity 19 (CAS 51073-14-4)
- Benzbromarone Impurity 13 (CAS 51073-15-5)
- Benzbromarone Impurity 26 (CAS CATO-C4X-225026)
- Benzbromarone Impurity 27 (CAS CATO-C4X-225027)
- Benzbromarone Impurity 28 (CAS CATO-C4X-225028)
- Benzbromarone Impurity 29 (CAS CATO-C4X-225029)
- Benzbromarone Impurity 30 (CAS CATO-C4X-225030)
- Benzbromarone Impurity 31 (CAS CATO-C4X-225031)
Recommended Standards
- 5,5-Dimethyl-2-oxo-4-phenyltetrahydrofuran-3-carbonitrile (CAS 21863-84-3)
- RU-SKI 43 (CAS 1043797-53-0)
- 1-Hexyl-2-(phenyl D5)-4-(1-naphthoyl)pyrroleJWH-147 D5 (CAS 1346605-27-3)
- S,S'-(Thiobis(4,1-phenylene)) bis(2-methylprop-2-enethioate) (CAS 129283-82-5)
- Lafutidine Impurity 28 HCl (CAS 146270-03-3（free base）)
- Empagliflozin Impurity 278 (CAS CATO-C4X-1065278)
- Ilaprazole impurity 192 (CAS CATO-C4X-1130192)
- (R)-N-Boc-4-(bromomethyl)-2,2-dimethyloxazolidine (CAS 1260610-79-4)
- Methyl 5-(dibromomethyl)-3-phenylisoxazole-4-carboxylate (CAS 682352-68-7)
- 5-Amino-2-(benzyloxy)benzonitrile (CAS 848134-18-9)
- Ethyl 2-phenylquinazoline-4-carboxylate (CAS 92566-52-4)
- 2,2',4,4'-Tetrabromo-1,1'-biphenyl (CAS 66115-57-9)
- Bis[(6-methylpyridin-2-yl)methyl]amine (CAS 25599-07-9)
- Insulin Degludec Impurity 25 (CAS CATO-C4X-215725)
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