Paclitaxel Impurity 62 CAS CATO-C4X-184262
| CAS No. | CATO-C4X-184262 |
| Molecular Formula | C45H55NO14 |
| Molecular Weight | 833.92 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Paclitaxel Impurity 62 (CAS CATO-C4X-184262, C45H55NO14) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C45H55NO14, Paclitaxel Impurity 62 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 833.92 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C45H55NO14 |
| Molecular Weight | 833.92 g/mol |
| Purity | ≥90% |
| 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) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Paclitaxel Standards
- Paclitaxel EP Impurity R (CAS 158948-96-0)
- Paclitaxel Impurity R (CAS 159001-25-9)
- Paclitaxel Impurity 38 (CAS 173101-55-8)
- Paclitaxel Impurity 58 (CAS CATO-C4X-184258)
- Paclitaxel Impurity 61 (CAS CATO-C4X-184261)
- Paclitaxel EP Impurity A (CAS 173101-54-7)
- Paclitaxel Impurity 18 (CAS CATO-C4X-184218)
- Paclitaxel EP Impurity B (CAS 71610-00-9)
Recommended Standards
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- Paliperidone Impurity 118 (CAS CATO-C4X-1724118)
- Lacosamide Impurity 19 (CAS CATO-C4X-183019)
- Cyclophosphamide Impurity 27 HCl (CAS 2387771-95-9（free base）)
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