Tolvaptan Impurity 63 CAS CATO-C4X-195563
| CAS No. | CATO-C4X-195563 |
| Molecular Formula | C16H15NO3 |
| Molecular Weight | 269.30 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Tolvaptan Impurity 63 (CAS CATO-C4X-195563) is a certified pharmaceutical impurity reference standard with the molecular formula C16H15NO3 and a molecular weight of 269.30 g/mol.
Structurally, Tolvaptan Impurity 63 (C16H15NO3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 269.30 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), Tolvaptan Impurity 63 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 | C16H15NO3 |
| Molecular Weight | 269.30 g/mol |
| Appearance | Pale yellow to 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Tolvaptan Standards
- Tolvaptan Impurity 28 (CAS 317374-08-6)
- Tolvaptan Impurity 53 (CAS CATO-C4X-195553)
- Tolvaptan Impurity 81 (CAS 1118884-67-5)
- Tolvaptan Impurity 82 (CAS 1306528-12-0)
- Tolvaptan Impurity 97 (CAS 1030654-92-2)
- Tolvaptan Impurity 5 (CAS CATO-C4X-19555)
- Tolvaptan Impurity 119 (CAS CATO-C4X-1955119)
- Tolvaptan Impurity 54 (CAS 1118884-66-4)
Recommended Standards
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- Butyl 2-(3-oxopiperazin-2-yl)acetate (CAS 90973-88-9)
- Semaglutide Impurity 128 (CAS 2490269-78-6)
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