Others Impurity 21 CAS 17656-74-5
Purity ≥95%In StockPharmacopoeial Impurity Standards
| CAS No. | 17656-74-5 |
| Molecular Formula | C19H19ClFN3O |
| Molecular Weight | 359.83 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Others Impurity 21 (CAS 17656-74-5) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C19H19ClFN3O. Molecular weight: 359.83 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C19H19ClFN3O |
| Molecular Weight | 359.83 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | ≥95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
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