Difamilast Impurity 3 CAS 937782-02-0
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 937782-02-0 |
| Molecular Formula | C22H22F2N2O5 |
| Molecular Weight | 432.42 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
High-purity Difamilast Impurity 3 (CAS 937782-02-0) pharmacopoeial impurity standards reference standard. Molecular formula: C22H22F2N2O5. Molecular weight: 432.42 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C22H22F2N2O5 |
| Molecular Weight | 432.42 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.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Difamilast Standards
- Difamilast Impurity 5 (CAS 2103190-81-2)
- Difamilast Impurity 8 (CAS 2103190-85-6)
- 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
- Nimodipine impurity 43 (CAS CATO-C4X-138543)
- 3,5,6,7,8,3',4'-Heptamethoxyflavone (CAS 1178-24-1)
- Naphthofluorescein (CAS 61419-02-1)
- Indometacin Impurity 58 (CAS CATO-C4X-147058)
- Azathioprine Impurity 9 (CAS 1190008-04-8)
- 2-fluoro-5-(1H-1,2,3,4-tetrazol-1-yl)aniline (CAS 924871-22-7)
- 2-(4-Chlorobenzoyl)-5-methoxy-3-methyl-1-benzofuran (CAS 303145-45-1)
- 6-Bromo-2-(pyridin-4-yl)quinoline-4-carbonyl chloride (CAS 1203419-34-4)
- (S)-α-Methyl 4-Trifluoromethoxyphenylalaine, 97% (CAS 1269926-90-0)
- Semaglutide impurity 195 (CAS CATO-C4X-2226195)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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