Doxorubicin Impurity 31 CAS CATO-C4X-203331
| CAS No. | CATO-C4X-203331 |
| Molecular Formula | C23H23BrO9 |
| Molecular Weight | 523.33 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Doxorubicin Impurity 31 (C23H23BrO9) contains a flavonoid core, a hydroxyl group, an ether linkage, bromine substitution. Halogen substitution raises its density and boiling point, 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).
Doxorubicin Impurity 31 (CAS CATO-C4X-203331) is a certified pharmaceutical impurity reference standard with the molecular formula C23H23BrO9 and a molecular weight of 523.33 g/mol.
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.
CATO manufactures Doxorubicin Impurity 31 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C23H23BrO9 |
| Molecular Weight | 523.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Br-containing |
Related Doxorubicin Standards
- Doxorubicin Impurity N1 (CAS 80996-23-2)
- Doxorubicin Impurity 26 (CAS CATO-C4X-203326)
- Doxorubicin Impurity 3 (CAS 69429-21-6)
- Doxorubicin Impurity 34 (CAS CATO-C4X-203334)
- Doxorubicin Impurity 32 (CAS CATO-C4X-203332)
- Doxorubicin Impurity 16 (CAS CATO-C4X-203316)
- Doxorubicin Olefin Impurity (CAS CATO-C4X-203318)
- Doxorubicin Impurity 20 (CAS CATO-C4X-203320)
Recommended Standards
- Ethyl (S)-3-(4,5-bis((tert-butoxycarbonyl)oxy)-2-iodophenyl)-2-formamidopropanoate (CAS 143993-89-9)
- 5-Bromo-N-(3,5-dimethoxybenzyl)-2,4-difluoro-N-(5-fluorothiazol-2-yl)benzenesulfonamide (CAS 2438941-90-1)
- 2,6-Bis[3-(trifluoromethyl)phenyl] 4-(trifluoromethyl)pyridine-2,6-dicarboxylate (CAS 1211082-03-9)
- (2R,3R,4S,5S,6R)-2-bromo-6-((tosyloxy)methyl)tetrahydro-2H-pyran-3,4,5-triyl triacetate (CAS 13046-90-7)
- Ornidazole Impurity 2 (CAS 31876-69-4)
- Etomidate Impurity 48 (CAS CATO-C4X-188448)
- Tigecycline Impurity 15 (CAS CATO-C4X-186015)
- 3-Bromo-5-ethyl-2-fluorophenylboronic acid (CAS 2121512-65-8)
- 1-Ethyl-3-methyl-1h-pyrazole-5-sulfonamide (CAS 1248102-74-0)
- 3-(2-Bromophenyl)-5-hydroxyisoxazole (CAS 1188130-63-3)
- Tenofovir alafenamide Impurity 12 (CAS 1796545-19-1)
- 4,4'-Sulfinylbis(fluorobenzene) (CAS 395-25-5)
- Mupirocin EP Impurity D Sodium Salt (CAS 116182-43-5)
- Neuropeptide Y (13-36) (porcine) (CAS 113662-54-7)
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