Bisacodyl Impurity 13 CAS CATO-C4X-203713
| CAS No. | CATO-C4X-203713 |
| Molecular Formula | C20H19NO5S |
| Molecular Weight | 385.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 process- or degradation-related impurity, Bisacodyl Impurity 13 (CAS CATO-C4X-203713, C20H19NO5S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Bisacodyl Impurity 13 (C20H19NO5S) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C20H19NO5S |
| Molecular Weight | 385.43 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Bisacodyl Standards
- Bisacodyl Impurity 8 (CAS CATO-C4X-20378)
- Bisacodyl Impurity 21 (CAS CATO-C4X-203721)
- Bisacodyl Impurity 23 (CAS CATO-C4X-203723)
- Bisacodyl Impurity 17 (CAS CATO-C4X-203717)
- Bisacodyl Impurity 16 (CAS CATO-C4X-203716)
- Bisacodyl EP Impurity E (CAS 111664-35-8)
- Bisacodyl (CAS 603-50-9)
- Bisacodyl impurity 19 (CAS 3040279-06-6)
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- 2-(Furan-2-yl)-5-(1-(styrylsulfonyl)piperidin-4-yl)-1,3,4-oxadiazole (CAS 1212790-16-3)
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