Difamilast Impurity 5 CAS 2103190-81-2
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 2103190-81-2 |
| Molecular Formula | C21H20F2N2O6 |
| Molecular Weight | 434.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Difamilast Impurity 5 (CAS 2103190-81-2) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C21H20F2N2O6. Molecular weight: 434.39 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C21H20F2N2O6 |
| Molecular Weight | 434.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Difamilast Standards
- Difamilast Impurity 8 (CAS 2103190-85-6)
- Difamilast Impurity 3 (CAS 937782-02-0)
- Difamilast Impurity 1 (CAS 1574285-40-7)
- Difamilast (CAS 937782-05-3)
- Difamilast Impurity 10 (CAS 2103190-58-3)
- Difamilast Impurity 6 (CAS 937782-01-9)
- Difamilast Impurity 2 (CAS 2103190-94-7)
- Difamilast Impurity 4 (CAS 2103190-65-2)
Recommended Standards
- Tenofovir alafenamide Impurity 14 (CAS 1234081-04-9)
- 2-(difluoro(3,4,5-trifluorophenoxy)methyl)-1,3-difluoro-5-((1s,4r)-4-propylcyclohexyl)benzene (CAS 208338-62-9)
- 10-Hydroxyaloin A (CAS 134863-91-5)
- Mivacurium Chloride Impurity 7 (S-S isomer) (CAS 104758-51-2)
- Clemastine Impurity 29 (CAS 94511-39-4)
- 2-(Chloromethyl)-5-(difluoromethoxy)benzo[d]oxazole (CAS 1803855-42-6)
- Bis(2-hydroxyethyl)-1,1,2,2-d4-amine (CAS 352431-07-3)
- 4-(Azepan-1-yl)-3-nitroaniline (CAS 5367-62-4)
- 1-((4-Chlorophenyl)sulfonyl)-4-tosylpiperazine (CAS 459795-96-1)
- C-Type Natriuretic Peptide (32-53) (human, porcine, rat) (CAS 127869-51-6)
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