Daunorubicin impurity 13 (Mixture of Epimer) CAS CATO-C4X-193713
| CAS No. | CATO-C4X-193713 |
| Molecular Formula | C27H31NO10 |
| Molecular Weight | 529.54 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Daunorubicin impurity 13 (Mixture of Epimer) (C27H31NO10) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
Daunorubicin impurity 13 (Mixture of Epimer) (CAS CATO-C4X-193713) is a certified pharmaceutical impurity reference standard with the molecular formula C27H31NO10 and a molecular weight of 529.54 g/mol.
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.
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 | C27H31NO10 |
| Molecular Weight | 529.54 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 |
| Nitrogen Atoms | 1 |
Related Daunorubicin Standards
- Daunorubicin EP Impurity B ((S)-Isomer) (CAS 28008-55-1)
- Daunorubicin Impurity 15 (CAS 952648-77-0)
- Daunorubicin EP Impurity B (Mixture of Diastereomers) (CAS CATO-C4X-19372)
- epi-Daunorubicin (CAS 57918-24-8)
- 3-epi-Daunorubicin (CAS 66322-65-4)
- Daunorubicin impurity 14 (CAS CATO-C4X-193714)
- Daunorubicin EP Impurity C (CAS 79438-97-4)
- Daunorubicin HCl EP Impurity F (CAS 771423-67-7)
Recommended Standards
- N-Notroso Minocycline impurity 78 (CAS CATO-C4X-169978)
- MC-Gly-Gly-Phe-Gly (CAS 2413428-36-9)
- Lisinopril Impurity N (CAS 103300-91-0)
- 5-Bromo-3-(2-nitrovinyl)-1H-indole (CAS 25217-77-0)
- Sunitinib Impurity 44 (CAS 110-72-5)
- Tepotinib impurity 34 (CAS 52240-10-5)
- Rimegepant Impurity 90 (CAS CATO-C4X-248790)
- 1-(3-(3-Fluoro-4-methoxyphenyl)-1,2,4-oxadiazol-5-yl)-N-methylmethanamine hydrochloride (CAS 1638612-72-2)
- 4-Hydroxypyridine-2,3-dicarbaldehyde (CAS 1393552-11-8)
- 1-Benzyl-3-carbethoxy-4-piperidone, HCl (CAS 1454-53-1)
- [Asu1,6,Arg8] Vasotocin (CAS 35375-13-4)
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- 6-Bromo-2-phenylbenzo[d]thiazole (CAS 77333-67-6)
- D-Ala35-Tirzepatide (CAS CATO-CPTD788904)
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