Sertraline EP Impurity A HCl (1R,4S-Isomer) CAS 79896-32-5
| CAS No. | 79896-32-5 |
| Molecular Formula | C17H17Cl2N |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Sertraline EP Impurity A HCl (1R,4S-Isomer) (CAS 79896-32-5) is a certified pharmaceutical impurity reference standard with the molecular formula C17H17Cl2NHCl and a molecular weight of 342.69 g/mol.
Based on its molecular formula C17H17Cl2NHCl, Sertraline EP Impurity A HCl (1R,4S-Isomer) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 342.69 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Physical & Chemical Properties
| Molecular Formula | C17H17Cl2N HCl |
| Molecular Weight | 342.69 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 chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Sertraline Standards
- Sertraline - Impurity C (Freebase) (CAS 107538-91-0)
- Sertraline Acetamide (CAS 1097616-52-8)
- Sertraline Carbamoyl Glucuronide (CAS 119733-44-7)
- Sertraline Impurity 26 (CAS 1198115-10-4（free base）)
- Sertraline RC 11 (CAS 1217630-23-3)
- Sertraline-d3 Hydrochloride (CAS 1217741-83-7)
- Sertraline Impurity 50 HCl (CAS 122873-20-5 (free base))
- Sertraline EP Impurity F Enantiomer (CAS 124379-29-9)
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