Benzbromarone EP Impurity A CAS 94729-09-6
| CAS No. | 94729-09-6 |
| Molecular Formula | C17H13BrO3 |
| Molecular Weight | 345.19 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Benzbromarone EP Impurity A is closely related to a steroid core, a hydroxyl group, an ether linkage, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Benzbromarone EP Impurity A (CAS 94729-09-6) is a certified pharmaceutical impurity reference standard with the molecular formula C17H13BrO3 and a molecular weight of 345.19 g/mol.
Structurally, Benzbromarone EP Impurity A (C17H13BrO3) contains a steroid core, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 345.19 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a certified reference material (CRM), Benzbromarone EP Impurity A 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 | C17H13BrO3 |
| Molecular Weight | 345.19 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Br-containing |
Related Benzbromarone Standards
- Benzbromarone Impurity 13 (CAS 51073-15-5)
- Benzbromarone Impurity 14 (CAS 77823-55-3)
- Benzbromarone Impurity 8 (CAS 27003-05-0)
- Benzbromarone Impurity 18 (CAS 857537-46-3)
- Benzbromarone Impurity 19 (CAS 51073-14-4)
- Benzbromarone Impurity 15 (CAS 79302-23-1)
- Benzbromarone Impurity 12 (CAS 3343-80-4)
- Benzbromarone Impurity 23 (CAS CATO-C4X-225023)
Recommended Standards
- 676596-64-8 9-[2-(4-Bromophenyl)hydrazinyl]-7,8-dihydro-6H-pyrido[3,2-b]azepin-6-one DTXSID90675847 (CAS 676596-64-8)
- 3-(5-(4-Iodophenyl)-1,3,4-thiadiazol-2-yl)propan-1-amine (CAS 1496085-27-8)
- tert-Butyl 5,5-difluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5,6-dihydropyridine-1(2H)-carboxylate (CAS 2654826-84-1)
- (4-(Dibenzylcarbamoyl)phenyl)boronic acid (CAS 212554-91-1)
- Procaterol Impurity 28 (CAS 59828-06-7)
- Prednisolone Impurity N6 (CAS 75448-51-0)
- Maropitant Impurity 12 (CAS CATO-C4X-250812)
- (4-(Difluoromethyl)-6-methyl-5-nitropyridin-2-yl)methanol (CAS 1806048-54-3)
- (S)-1-(((9H-Fluoren-9-yl)methoxy)carbonyl)azepane-2-carboxylic acid (CAS 2322925-11-9)
- Fluoxetine Impurity 31 (CAS 5409-66-5)
- Itraconazole Impurity 63 (CAS CATO-C4X-149763)
- 2-(4-Methoxyphenyl)-[1,2,4]triazolo[1,5-a]pyridin-7-amine (CAS 1894480-74-0)
- Methyl 3-isopropoxy-1H-pyrazole-5-carboxylate (CAS 888738-50-9)
- D-Gln24-Tirzepatide (CAS CATO-CPTD788910)
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