Doxorubicin Impurity 39 (Mixture of Diastereomers) CAS 210837-87-9
| CAS No. | 210837-87-9 |
| Molecular Formula | C21H20O7 |
| Molecular Weight | 384.38 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Doxorubicin Impurity 39 (Mixture of Diastereomers) (CAS 210837-87-9), a pharmacopoeial impurity reference standard (molecular formula C21H20O7, MW 384.38 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Doxorubicin Impurity 39 (Mixture of Diastereomers) (C21H20O7) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 384.38 g/mol, it falls into the moderately-high-molecular-weight range. 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), Doxorubicin Impurity 39 (Mixture of Diastereomers) 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 | C21H20O7 |
| Molecular Weight | 384.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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 |
| CAS Registry Year (est.) | 2017 |
Related Doxorubicin Standards
- Doxorubicin Impurity 14 (CAS CATO-C4X-203314)
- Doxorubicin Impurity 7 (CAS 105612-58-6)
- Doxorubicin Impurity 8 (CAS 20982-41-6)
- Doxorubicin Impurity 5 (CAS 1159977-23-7)
- Doxorubicin Impurity 24 (CAS CATO-C4X-203324)
- Doxorubicin Impurity 36 (CAS CATO-C4X-203336)
- Doxorubicin Dimer Impurity 17 (CAS 59325-98-3)
- Doxorubicin Impurity 6 (CAS 32384-98-8)
Recommended Standards
- D-erythro-Pentofuranose-2-deoxy-1-acetate-3,5-dibenzoate (CAS 51255-12-0)
- Ethyl 2-((2-(2,3-dimethoxyphenyl)-4-oxo-4H-chromen-3-yl)oxy)acetate (CAS 331459-67-7)
- 6-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)naphthalene-1,3-disulfonic acid (CAS 7277-87-4)
- Ethyl 3-oxobenzo[d]isoxazole-2(3H)-carboxylate (CAS 73806-09-4)
- Toceranib impurity 2 (CAS CATO-C4X-25852)
- Vigabatrin Impurity 12 (CAS CATO-C4X-119612)
- Minodronic Acid Impurity 14 (CAS CATO-C4X-124114)
- (3S)-3,4-Dihydroxybutanoic Acid Ethyl Ester (CAS 108585-47-3)
- 2-[4-(4-hydroxyphenyl)piperazin-1-yl]-N,N-dimethyl-2-phenylacetamide (CAS 1214022-77-1)
- N1,N1-dimethyl-6-(trifluoromethyl)benzene-1,3-diamine (CAS 1369841-57-5)
- (E)-1,2,3-Tribromo-But-2-Ene (CAS 40049-80-7)
- 1-(Benzyloxy)-5-bromo-2-fluoro-3-iodobenzene (CAS 2586126-25-0)
- Fichtelite (CAS 2221-95-6)
- Atrial Natriuretic Peptide (ANP)(1-28) Alpha (Human, Ovine, Canine) (CAS 91917-63-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com