Venlafaxine Impurity 82 CAS 121821-92-9
| CAS No. | 121821-92-9 |
| Molecular Formula | C15H20O4 |
| Molecular Weight | 264.32 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Venlafaxine Impurity 82 (CAS 121821-92-9, C15H20O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Venlafaxine Impurity 82 (C15H20O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 264.32 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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), Venlafaxine Impurity 82 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 | C15H20O4 |
| Molecular Weight | 264.32 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
Related Venlafaxine Standards
- Venlafaxine EP Impurity D (CAS 149289-30-5)
- Venlafaxine Impurity 59 (CAS CATO-C4X-143459)
- Venlafaxine Impurity 74 (CAS CATO-C4X-143474)
- Venlafaxine Impurity 83 (CAS CATO-C4X-143483)
- Venlafaxine Impurity 36 (CAS 1062609-99-7)
- Venlafaxine EP Impurity G (CAS 1076199-92-2)
- Venlafaxine Impurity 10 (CAS 1346601-55-5)
- Venlafaxine EP Impurity F (CAS 93413-57-1)
Recommended Standards
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