Diflorasone Impurity 5 CAS CATO-C4X-24805
| CAS No. | CATO-C4X-24805 |
| Molecular Formula | C27H34F2O7 |
| Molecular Weight | 508.55 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 508.55 g/mol gives Diflorasone Impurity 5 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Diflorasone Impurity 5 (CAS CATO-C4X-24805), a pharmacopoeial impurity reference standard (molecular formula C27H34F2O7, MW 508.55 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, a polycyclic aromatic system, Diflorasone Impurity 5 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 508.55 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
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 | C27H34F2O7 |
| Molecular Weight | 508.55 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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 Diflorasone Standards
- Diflorasone Diacetate (CAS 33564-31-7)
- Diflorasone 17-propionate (CAS 924726-89-6)
- Diflorasone 21-Propionate (CAS 541502-98-1)
- Diflorasone impurity 6 (CAS CATO-C4X-24806)
- Diflorasone 21-acetate (CAS 3826-17-3)
- Diflorasone impurity 4 (CAS CATO-C4X-24804)
- Diflorasone impurity 3 (CAS CATO-C4X-24803)
- Diflorasone (CAS 2557-49-5)
Recommended Standards
- Latamoxef Impurity 4 (CAS 76945-69-2)
- Difluprednate (CAS 23674-86-4)
- Latamoxef Impurity 3 (CAS 66510-99-4)
- 21-Acetyloxy Deschloromometasone Furoate 9,11-Epoxide (CAS 109183-56-4)
- Bilastine impurity 108 (CAS CATO-C4X-2253108)
- Baloxavir Marboxil Impurity 222 (CAS CATO-C4X-2108222)
- Minodronic Impurity 27 (CAS CATO-C4X-124127)
- (3R,4R,5S)-4-(4-hydroxyphenyl)-5-((triisopropylsilyl)oxy)piperidin-3-ol (CAS 873945-31-4)
- 4-Bromo-3-(2,6-dimethylphenyl)-3-fluoropropiophenone (CAS 898754-94-4)
- (4-Bromophenyl)phosphonic acid (CAS 16839-13-7)
- (2-Bromoethyl)(phenyl)selane (CAS 50630-23-4)
- 3-Phenyl-5-(p-tolyl)-4,5-dihydroisoxazole (CAS 20821-95-8)
- (R)-2-Hydroxy-3,3-dimethylbutanoic acid (CAS 22146-57-2)
- Tirzepatide Impurity 58 (CAS CATO-C4X-324058)
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