Epirubicin EP Impurity A CAS 24385-10-2
| CAS No. | 24385-10-2 |
| Molecular Formula | C21H18O9 |
| Molecular Weight | 414.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C21H18O9, Epirubicin EP Impurity A contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 414.36 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).
CATO supplies Epirubicin EP Impurity A (CAS 24385-10-2), a pharmacopoeial impurity reference standard (molecular formula C21H18O9, MW 414.36 g/mol) used for the identification and quantification of trace impurities in APIs.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a certified reference material (CRM), Epirubicin EP Impurity A 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 | C21H18O9 |
| Molecular Weight | 414.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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 Epirubicin Standards
- Epirubicin EP Impurity B (CAS 21794-55-8)
- Epirubicin (CAS 56420-45-2)
- Epirubicin EP Impurity C (CAS CATO-C4X-11163)
- Epirubicin Impurity 15 (CAS 99570-29-3)
- Epirubicin Impurity 5 (CAS 26388-52-3)
- Epirubicin Impurity 7 (CAS 57918-22-6)
- Epirubicin Impurity 10 (CAS CATO-C4X-111610)
- Epirubicin Impurity 12 (CAS CATO-C4X-111612)
Recommended Standards
- Diethyl 3,3′,4,4′-benzophenonetetracarboxylate (CAS 51018-94-1)
- Sodium Cromoglicate Impurity 24 (CAS CATO-C4X-201124)
- 7-(Sulfooxy)-3-[4-(sulfooxy)phenyl]-4H-1-benzopyran-4-one (CAS 55277-86-6)
- Sarafloxacin impurity 1 (CAS CATO-C4X-31171)
- Amorolfine EP Impurity E HCl (trans-Amorolfine HCl) (Mixture of Diastereomers) (CAS CATO-C4X-154212)
- Clevidipine butyrate Impurity 11 (CAS 138279-32-0)
- Mosapride Impurity 46 (CAS CATO-C4X-104446)
- 2-(chloromethyl)-5-(2-nitrophenyl)-1,3,4-oxadiazole (CAS 63002-55-1)
- Maxacalcitol Impurity N1 (CAS 81522-68-1)
- (2-Fluorophenyl)(4-(methylsulfonyl)piperidin-1-yl)methanone (CAS 1448045-01-9)
- 3-(Bromomethyl)-3-methyl-1-(methylsulfonyl)pentane (CAS 1491123-99-9)
- Apixaban Impurity 166 (CAS CATO-C4X-1088166)
- (S)-Benzyl 4-(3-(tert-butoxy)-3-oxopropyl)-2,5-dioxooxazolidine-3-carboxylate (CAS 178614-81-8)
- Gly-Neuroendocrine Regulatory Peptide-3 (human, mouse, rat) trifluoroacetate salt (CAS 1815618-19-9)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com