Bromfenac Impurity 75 CAS 91715-34-3
| CAS No. | 91715-34-3 |
| Molecular Formula | C15H11BrClNO3 |
| Molecular Weight | 368.61 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Bromfenac Impurity 75 (C15H11BrClNO3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 368.61 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Bromfenac Impurity 75 (CAS 91715-34-3) is a certified pharmaceutical impurity reference standard with the molecular formula C15H11BrClNO3 and a molecular weight of 368.61 g/mol.
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), Bromfenac Impurity 75 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 | C15H11BrClNO3 |
| Molecular Weight | 368.61 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
Related Bromfenac Standards
- Bromfenac Impurity 18 (CAS CATO-C4X-200218)
- Bromfenac Impurity 34 (CAS CATO-C4X-200234)
- Bromfenac Impurity 54 (CAS CATO-C4X-200254)
- Bromfenac Impurity 43 (CAS CATO-C4X-200243)
- Bromfenac Impurity 64 (CAS 91713-90-5)
- Bromfenac Impurity 30 (CAS 102414-22-2)
- Bromfenac Impurity 30 (CAS 1279501-08-4)
- Bromfenac Impurity 49 (CAS 91714-66-8)
Recommended Standards
- 2-Bromo-N-[4-chloro-2-(4-hydroxybenzoyl)phenyl]acetamide (CAS 67445-86-7)
- 10-DOXYL-nonadecane, free radical 101829-05-4 4,4-Dimethyl-2,2-dinonyl-3-oxazolidinyloxy, free radical (CAS 101829-05-4)
- (E)-1-((4-bromobenzyl)oxy)-2-chloro-4-(2-nitrovinyl)benzene (CAS 1260890-04-7)
- (4,5-Bis(benzyloxy)-2-chlorophenyl)boronic acid (CAS 1192737-16-8)
- Eltrombopag Impurity 107 (CAS CATO-C4X-1198107)
- Neomycin Impurity 13 (CAS 58152-23-1)
- Fosaprepitant Impurity 34 (CAS CATO-C4X-116834)
- Methyl (1R,3S)-3-aminospiro[3.3]heptane-1-carboxylate hydrochloride (CAS 2418595-57-8)
- 3-(1-Methyl-1H-pyrazol-3-yl)benzenesulfonamide (CAS 2167903-60-6)
- 1-(4-Bromo-2-methylphenyl)-5-oxopyrrolidine-3-carboxylic acid (CAS 443636-62-2)
- Glucose impurity 15 (CAS 1181972-37-1)
- Arotinolol Impurity 49 (CAS CATO-C4X-185449)
- 1-[(4-Fluoro-2-methylsulfonyl)phenyl]-4-methylpiperazine (CAS 1000339-70-7)
- Cholecystokinin Octapeptide (desulfated) (CAS 25679-24-7)
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