Flurbiprofen Impurity 143 CAS CATO-C4X-1444143
| CAS No. | CATO-C4X-1444143 |
| Molecular Formula | C30H35FO2 |
| Molecular Weight | 446.60 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C30H35FO2, Flurbiprofen Impurity 143 contains a steroid core, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 446.60 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Flurbiprofen Impurity 143 (CAS CATO-C4X-1444143) is a certified pharmaceutical impurity reference standard with the molecular formula C30H35FO2 and a molecular weight of 446.60 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C30H35FO2 |
| Molecular Weight | 446.60 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
Related Flurbiprofen Standards
- Flurbiprofen Impurity 134 (CAS CATO-C4X-1444134)
- Flurbiprofen Impurity 64 (CAS CATO-C4X-144464)
- Flurbiprofen Impurity 125 (CAS CATO-C4X-1444125)
- Flurbiprofen Impurity 131 (CAS CATO-C4X-1444131)
- Flurbiprofen Impurity 132 (CAS CATO-C4X-1444132)
- Flurbiprofen Impurity 95 (CAS CATO-C4X-144495)
- Flurbiprofen Impurity 62 (CAS CATO-C4X-144462)
- Flurbiprofen Impurity 98 (CAS CATO-C4X-144498)
Recommended Standards
- 2-(Benzylthio)-4-((4-methoxyphenyl)thio)benzo[4,5]thieno[3,2-d]pyrimidine (CAS 478029-99-1)
- Clindamycin Impurity 86 (CAS CATO-C4X-134186)
- 2-(Methylsulfanyl)-4,6-bis(4-phenylpiperazin-1-yl)pyrimidine (CAS 339017-95-7)
- Clindamycin Impurity 142 (CAS CATO-C4X-1341142)
- Roxadustat Impurity 33 (CAS 1455091-04-9)
- Etomidate impurity 62 (CAS CATO-C4X-188462)
- Isoprenaline Impurity 47 (CAS CATO-C4X-277547)
- IC-BT-Br (CAS 2222146-77-0)
- Tert-butyl 10-oxo-8-oxa-2,11-diazaspiro[5.6]dodecane-2-carboxylate (CAS 1935503-30-2)
- N-(tert-Butyl)-2-(5-chloro-4-formyl-2-methoxyphenoxy)acetamide (CAS 1427011-76-4)
- 2-(Difluoromethoxy)-5-fluorobenzoic acid (CAS 1017779-44-0)
- (R)-3-Methyltetrahydro-2H-thiopyran (CAS 91096-06-9)
- Tert-butyl methyl(1,4-dioxaspiro[4.5]Decan-8-yl)carbamate (CAS 1478016-33-9)
- Cholecystokinin Octapeptide (1-5) (desulfated) (CAS 121880-96-4)
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