Pyronaridine Impurity 7 CAS CATO-C4X-29787
| CAS No. | CATO-C4X-29787 |
| Molecular Formula | C17H16ClN3O |
| Molecular Weight | 313.78 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Pyronaridine Impurity 7.
Pyronaridine Impurity 7 (CAS CATO-C4X-29787) is a certified pharmaceutical impurity reference standard with the molecular formula C17H16ClN3O and a molecular weight of 313.78 g/mol.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Pyronaridine Impurity 7 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 313.78 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
As a certified reference material (CRM), Pyronaridine Impurity 7 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C17H16ClN3O |
| Molecular Weight | 313.78 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Pyronaridine Standards
- Pyronaridine Impurity 11 (CAS CATO-C4X-297811)
- Pyronaridine Impurity 18 (CAS CATO-C4X-297818)
- Pyronaridine Impurity 1 (CAS CATO-C4X-29781)
- Pyronaridine Impurity 16 (CAS 81935-64-0)
- Pyronaridine Impurity 10 (CAS 6626-40-0)
- Pyronaridine Impurity 12 (CAS CATO-C4X-297812)
- Pyronaridine Impurity 7 (CAS 81935-60-6)
- Pyronaridine Impurity 2 (CAS 1422180-92-4)
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