Docetaxel Impurity 39 CAS 859498-31-0
| CAS No. | 859498-31-0 |
| Molecular Formula | C57H61Cl6NO19 |
| Molecular Weight | 1276.81 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Docetaxel Impurity 39 (CAS 859498-31-0) is a certified pharmaceutical impurity reference standard with the molecular formula C57H61Cl6NO19 and a molecular weight of 1276.81 g/mol.
Docetaxel Impurity 39 (C57H61Cl6NO19) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), Docetaxel Impurity 39 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 | C57H61Cl6NO19 |
| Molecular Weight | 1276.81 g/mol |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 25.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Docetaxel Standards
- Docetaxel Impurity 87 (CAS CATO-C4X-161987)
- Docetaxel Impurity 11 (CAS 114915-14-9)
- Docetaxel Impurity 21 (CAS 151636-78-1)
- Docetaxel Impurity 74 (CAS CATO-C4X-161974)
- Docetaxel Impurity 75 (CAS CATO-C4X-161975)
- Docetaxel Impurity 56 (CAS CATO-C4X-161956)
- Docetaxel Impurity 57 (CAS CATO-C4X-161957)
- Docetaxel Impurity 59 (CAS CATO-C4X-161959)
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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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