Tribenoside EP Impurity B CAS 28713-39-5
| CAS No. | 28713-39-5 |
| Molecular Formula | C23H28O6 |
| Molecular Weight | 400.46 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 400.46 g/mol gives Tribenoside EP Impurity B distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Tribenoside EP Impurity B (CAS 28713-39-5, C23H28O6) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Tribenoside EP Impurity B (C23H28O6) is characterized by a flavonoid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional 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).
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), Tribenoside EP Impurity B 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 | C23H28O6 |
| Molecular Weight | 400.46 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at room temperature, 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
Related Tribenoside Standards
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- N-(2,5-dimethylphenyl)-3-phenylacrylamide (CAS 98681-35-7)
- 1-(4-Methylphenyl)-2-({5-[4-(trifluoromethyl)phenyl]-1,3,4-oxadiazol-2-yl}sulfanyl)-1-ethanone (CAS 477857-02-6)
- 2,2-Diacetyl-3-(4-chlorophenyl)cyclopropane-1,1-dicarbonitrile (CAS 477890-19-0)
- Corynecin I (CAS 4423-58-9)
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