Tropisetron Impurity 2 CAS CATO-C4X-11792
| CAS No. | CATO-C4X-11792 |
| Molecular Formula | C18H12N2O3 |
| Molecular Weight | 304.30 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Tropisetron Impurity 2 (CAS CATO-C4X-11792), a pharmacopoeial impurity reference standard (molecular formula C18H12N2O3, MW 304.30 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C18H12N2O3, Tropisetron Impurity 2 contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 304.30 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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), Tropisetron Impurity 2 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 | C18H12N2O3 |
| Molecular Weight | 304.30 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Tropisetron Standards
- Tropisetron Impurity 3 (CAS CATO-C4X-11793)
- Tropisetron (CAS 89565-68-4)
- Tropisetron Impurity 5 (CAS CATO-C4X-11795)
- Tropisetron Impurity 6 (CAS 2232112-69-3)
- Tropisetron Hydrochloride EP Impurity B (CAS 771-50-6)
- Tropisetron EP Impurity A (CAS 120-29-6)
- Tropisetron Hydrochloride (CAS 105826-92-4)
- Tropisetron Impurity 1(Beta-Tropisetron) (CAS CATO-C4X-11791)
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Why CATO?
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