Flurbiprofen Impurity 95 CAS CATO-C4X-144495
| CAS No. | CATO-C4X-144495 |
| Molecular Formula | C28H35FO4 |
| Molecular Weight | 454.57 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Flurbiprofen Impurity 95 (CAS CATO-C4X-144495), a pharmacopoeial impurity reference standard (molecular formula C28H35FO4, MW 454.57 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a steroid core, a hydroxyl group, an ether linkage, fluorine substitution, Flurbiprofen Impurity 95 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 454.57 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO manufactures Flurbiprofen Impurity 95 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C28H35FO4 |
| Molecular Weight | 454.57 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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 |
| Halogen Content | F-containing |
Related Flurbiprofen Standards
- Flurbiprofen Impurity 125 (CAS CATO-C4X-1444125)
- Flurbiprofen Impurity 131 (CAS CATO-C4X-1444131)
- Flurbiprofen Impurity 132 (CAS CATO-C4X-1444132)
- Flurbiprofen Impurity 134 (CAS CATO-C4X-1444134)
- Flurbiprofen Impurity 143 (CAS CATO-C4X-1444143)
- Flurbiprofen Impurity 64 (CAS CATO-C4X-144464)
- Flurbiprofen Impurity 62 (CAS CATO-C4X-144462)
- Flurbiprofen Impurity 98 (CAS CATO-C4X-144498)
Recommended Standards
- 1-(4-(1-(4-Fluorophenyl)-1H-indol-3-yl)butyl)-3H-spiro[isobenzofuran-1,4-piperidine] (CAS 147817-50-3)
- n-(2-Ethylphenyl)-4-methyl-5-phenyl-2-(2-phenylacetamido)thiophene-3-carboxamide (CAS 6078-91-7)
- Estriol impurity 25 (CAS 55105-93-6)
- N-Decyl-4-(2-(quinolin-4-yl)vinyl)-3-(trifluoromethyl)aniline (CAS 823216-30-4)
- Omadacycline impurity 19 (CAS CATO-C4X-285719)
- Posaconazole Impurity 157 (CAS CATO-C4X-1208157)
- Semaglutide Impurity 147 (CAS CATO-C4X-2226147)
- (S,E)-2-Methyl-N-(3-methylbutan-2-ylidene)propane-2-sulfinamide (CAS 910909-98-7)
- Tert-butyl 4-(5-(chloromethyl)-1,3,4-oxadiazol-2-yl)piperidine-1-carboxylate (CAS 685828-39-1)
- 1-Chloro-4-(4-methoxybenzyl)benzene (CAS 37155-52-5)
- (5-Phenylthiomorpholin-3-yl)methanol (CAS 1315366-00-7)
- N-methyl-N-(piperidin-4-ylmethyl)prop-2-en-1-amine (CAS 1518928-67-0)
- 2,6-Dibromo-4-(difluoromethyl)pyridin-3-ol (CAS 1806805-35-5)
- Peptide 432 (CAS CATO-CPTD788432)
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