Difluprednate Impurity 4 CAS 1296262-60-6
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 1296262-60-6 |
| Molecular Formula | C21H24FIO5 |
| Molecular Weight | 502.32 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Difluprednate Impurity 4 (CAS 1296262-60-6) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C21H24FIO5. Molecular weight: 502.32 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C21H24FIO5 |
| Molecular Weight | 502.32 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F/I-containing |
Related Difluprednate Standards
- Difluprednate (CAS 23674-86-4)
- Difluprednate Impurity N1 (CAS 23640-96-2)
- Difluprednate Impurity 1 (CAS CATO-C4X-21781)
- Difluprednate Impurity N2 (CAS 2326-26-3)
- Difluprednate Impurity 3 (CAS 1234557-20-0)
- Difluprednate Impurity 2 (CAS 2285-44-1)
- Difluprednate Impurity 5 (CAS 1270039-29-6)
- Difluprednate Impurity 6 (CAS 167997-12-8)
Recommended Standards
- tert-Butyl 2-iodo-2-(triphenylphosphoranylidene)acetate (CAS 201221-72-9)
- 2-((4-(4-Bromophenyl)-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(3,4-difluorophenyl)acetamide (CAS 477332-88-0)
- BDY FL-X, SE (CAS 217190-09-5)
- Cefixime Impurity 68 (CAS CATO-C4X-113968)
- Upadacitinib Impurity 67 (CAS CATO-C4X-240567)
- 3-(Benzo[d][1,3]dioxol-5-yl)pyrrolidine (CAS 1082806-61-8)
- (3-Phenylcyclobutyl)methanamine hydrochloride (CAS 1803611-35-9)
- 1198AB 220957-39-1 5-Bromofuro[2,3-b]pyridine C7H4BrNO (CAS 220957-39-1)
- (Butan-2-yl)({[4-(methylsulfanyl)phenyl]methyl})amine hydrochloride (CAS 1158246-97-9)
- (Glu9)-Exenatide (2-39) trifluoroacetate salt (CAS 196109-34-9)
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