Difluprednate Impurity 2 CAS 2285-44-1
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 2285-44-1 |
| Molecular Formula | C21H24F2O4 |
| Molecular Weight | 378.41 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Difluprednate Impurity 2 (CAS 2285-44-1) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C21H24F2O4. Molecular weight: 378.41 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C21H24F2O4 |
| Molecular Weight | 378.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
Related Difluprednate Standards
- Difluprednate Impurity 5 (CAS 1270039-29-6)
- Difluprednate Impurity 3 (CAS 1234557-20-0)
- Difluprednate Impurity 6 (CAS 167997-12-8)
- Difluprednate Impurity N2 (CAS 2326-26-3)
- Difluprednate Impurity N1 (CAS 23640-96-2)
- Difluprednate Impurity 1 (CAS CATO-C4X-21781)
- Difluprednate Impurity 4 (CAS 1296262-60-6)
- Difluprednate (CAS 23674-86-4)
Recommended Standards
- 4-((Triphenyl-lambda5-phosphanylidene)amino)benzonitrile (CAS 74395-06-5)
- 3,6,9,12,15,18,21-Heptaoxatetracos-1-yn-24-oic acid (CAS 1818294-28-8)
- Methyl 2-(5-benzyl-4,6-dioxo-3-phenyloctahydropyrrolo[3,4-c]pyrrol-1-yl)acetate (CAS 1008006-46-9)
- Atorvastatin EP Impurity E (CAS 110862-48-1（Relative）)
- Salbutamol Impurity 126 (CAS CATO-C4X-1176126)
- methyl 2-({[(tert-butoxy)carbonyl]amino}amino)-2-phenylacetate (CAS 182887-79-2)
- Tert-butyl 4'-methyl-[1,1'-biphenyl]-2-carboxylate (CAS 114772-36-0)
- 2-(Methylthio)-N-(2,3,4-trifluorophenyl)nicotinamide (CAS 785799-95-3)
- 4-Methyl-8-(1-(phenylsulfonyl)-1H-indol-2-yl)dihydro-4l4,8l4-[1,3,2]oxazaborolo[2,3-b][1,3,2]oxazaborole-2,6(3H,5H)-dione (CAS 1158984-95-2)
- Semaglutide impurity 56 (CAS CATO-C4X-222656)
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 13829788188 / jacky.chen@cato-chem.com