Flurbiprofen Impurity 104 CAS CATO-C4X-1444104
| CAS No. | CATO-C4X-1444104 |
| Molecular Formula | C19H19FO4 |
| Molecular Weight | 330.35 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Flurbiprofen Impurity 104 is closely related to a flavonoid core, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, Flurbiprofen Impurity 104 (CAS CATO-C4X-1444104, C19H19FO4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Flurbiprofen Impurity 104 (C19H19FO4) contains a flavonoid core, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 manufactures Flurbiprofen Impurity 104 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 | C19H19FO4 |
| Molecular Weight | 330.35 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| 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 |
| Halogen Content | F-containing |
Related Flurbiprofen Standards
- Flurbiprofen impurity 103 (CAS CATO-C4X-1444103)
- Flurbiprofen Impurity 109 (CAS 119623-42-6)
- Flurbiprofen Impurity 25 (CAS 91503-88-7)
- (R)-Flurbiprofen Axetil (Mixture of Diastereomers) (CAS 2375240-97-2)
- (S)-Flurbiprofen Axetil (Mixture of Diastereomers) (CAS 1401087-64-6)
- Flurbiprofen Axetil (CAS 91503-79-6)
- Flurbiprofen Impurity 38 (CAS 26039-74-7)
- Flurbiprofen Impurity 35 (CAS CATO-C4X-144435)
Recommended Standards
- Linezolid Impurity 82 (CAS CATO-C4X-107382)
- Linezolid Impurity 45 (CAS 168828-81-7)
- tert-Butyl 3-[4-(trifluoromethyl)phenyl]piperazine-1-carboxylate (CAS 886767-93-7)
- Tert-butyl 3-(3-(trifluoromethyl)phenyl)piperazine-1-carboxylate (CAS 886767-85-7)
- Dasatinib Impurity 74 (CAS CATO-C4X-160774)
- Racecadotril Impurity 20 (CAS CATO-C4X-110620)
- Lumateperone Impurity 12 (CAS CATO-C4X-220112)
- (5-Bromofuran-2-yl)methanol (CAS 27230-58-6)
- Methyl 2-(2,2-difluoroethyl)-5-imino-2,5-dihydro-1h-pyrazole-3-carboxylate (CAS 1328640-36-3)
- 1-Bromo-2-((pentyloxy)methyl)benzene (CAS 80171-37-5)
- Terbutaline Impurity 28 (CAS 28924-25-6)
- (5-Bromo-2-fluorobenzyl)hydrazine Dihydrochloride (CAS 2044707-27-7)
- Triflusulfuron (CAS 135990-29-3)
- Copper Peptide ·2 acetate salt (CAS 130120-57-9)
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