Flurbiprofen Impurity 155 CAS CATO-C4X-1444155
| CAS No. | CATO-C4X-1444155 |
| Molecular Formula | C20H29BrO2 |
| Molecular Weight | 381.35 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Flurbiprofen Impurity 155 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.
Flurbiprofen Impurity 155 (CAS CATO-C4X-1444155) is a certified pharmaceutical impurity reference standard with the molecular formula C20H29BrO2 and a molecular weight of 381.35 g/mol.
The molecular framework of Flurbiprofen Impurity 155 (C20H29BrO2) is characterized by a steroid core, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C20H29BrO2 |
| Molecular Weight | 381.35 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Br-containing |
Related Flurbiprofen Standards
- Flurbiprofen Impurity 45 (CAS CATO-C4X-144445)
- Flurbiprofen Impurity 66 (CAS CATO-C4X-144466)
- Flurbiprofen Impurity 20 (CAS CATO-C4X-144420)
- Flurbiprofen Impurity 22(Mixture of Diastereomers) (CAS CATO-C4X-144422)
- Flurbiprofen Impurity 28 (CAS CATO-C4X-144428)
- Flurbiprofen Impurity 56 (CAS CATO-C4X-144456)
- Flurbiprofen Impurity 75 (CAS CATO-C4X-144475)
- Flurbiprofen Impurity 76 (CAS CATO-C4X-144476)
Recommended Standards
- N-(4-{[2-oxo-5-(trifluoromethyl)-1,2-dihydropyridin-1-yl]methyl}phenyl)morpholine-4-carboxamide (CAS 339025-53-5)
- Belzutifan Impurity 3 (CAS CATO-C4X-33943)
- 6-{morpholin-4-yl[4-(trifluoromethyl)phenyl]methyl}-1,3-dioxaindan-5-ol (CAS 289657-30-3)
- Tribenuron (CAS 106040-48-6)
- Finasteride Impurity 36 (CAS CATO-C4X-164536)
- Selexipag Impurity 10 (CAS 475086-75-0)
- Mequitazine Impurity 1 (CAS 144827-80-5)
- 2-(5-chloro-2-fluorophenyl)acetaldehyde (CAS 1023794-81-1)
- 1-[3-[2-[3-(3-methyldiazirin-3-yl)propanoylamino]ethyldisulfanyl]propanoyloxy]-2,5-dioxo-pyrrolidine-3-sulfonic acid (CAS 1227040-18-7)
- Ethyl 4-((1-hydroxy-2-phenyl-1H-indol-3-yl)(pyridin-2-yl)methyl)piperazine-1-carboxylate (CAS 622795-76-0)
- 2-Methyl-5-(2-trifluoromethylbenzoyl)pyridine (CAS 1187166-87-5)
- Magnesium 2-hydroxypropane-1,2,3-tricarboxylate tetradecahydrate (CAS 6150-79-4)
- tert-butyl N-[(6-methyl-1,2,4,5-tetrazin-3-yl)methyl]carbamate (CAS 1380500-89-9)
- Neuropeptide AF (human) (CAS 192387-38-5)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com