Etoposide EP Impurity D CAS 23363-35-1
| CAS No. | 23363-35-1 |
| Molecular Formula | C27H30O13 |
| Molecular Weight | 562.52 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Etoposide EP Impurity D (C27H30O13) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. 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).
CATO supplies Etoposide EP Impurity D (CAS 23363-35-1), a pharmacopoeial impurity reference standard (molecular formula C27H30O13, MW 562.52 g/mol) used for the identification and quantification of trace impurities in APIs.
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), Etoposide EP Impurity D 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 | C27H30O13 |
| Molecular Weight | 562.52 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
Related Etoposide Standards
- Etoposide Impurity 23 (CAS 101648-63-9)
- Etoposide 3,4-Quinone (CAS 105016-65-7)
- Etoposide impurity 22 (CAS 153975-25-8)
- Etoposide Impurity 30 (CAS CATO-C4X-202430)
- Etoposide (CAS 33419-42-0)
- Etoposide EP Impurity B (CAS 100007-56-5)
- Etoposide EP Impurity C (CAS 100007-53-2)
- Etoposide EP Impurity I (CAS 111712-42-6)
Recommended Standards
- Quercetin 3-O-(6''-O-Malonyl)-b-D-glucoside (CAS 96862-01-0)
- Glomeratose A (CAS 202471-84-9)
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- Methyl 5-((2-methyl-5-(3-(4-methyl-1H-imidazol-1-yl)-5-(trifluoromethyl)benzamido)benzyl)amino)-1H-pyrrolo[2,3-b]pyridine-2-carboxylate (CAS 1240322-54-6)
- Bedaquiline Impurity 20 (CAS CATO-C4X-116720)
- Ceftriaxone Impurity 26 (CAS 77780-49-5)
- Dabigatran Impurity 145 (CAS CATO-C4X-1089145)
- 3-Methoxy-4-(oxetan-3-yloxy)benzaldehyde (CAS 1538343-61-1)
- 1H-Indole-2,4-dicarboxylic acid (CAS 103027-96-9)
- Methyl 5-chloro-1-(2,4-dichlorobenzyl)-6-oxo-1,6-dihydro-3-pyridinecarboxylate (CAS 242797-32-6)
- Methyl 2-((1-(cyclohexylsulfonyl)pyrrolidin-3-yl)thio)acetate (CAS 1795299-12-5)
- Methyl (R)-3-amino-3-(3-bromo-5-methylphenyl)propanoate (CAS 1344413-33-7)
- Triphenyl(2-(2,3,4-trimethylphenyl)propan-2-yl)phosphonium chloride (CAS 60725-10-2)
- Neuropeptide EI (human, mouse, rat) (CAS 125934-45-4)
Why CATO?
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