Apalutamide Impurity 13 CAS 2649802-40-2
| CAS No. | 2649802-40-2 |
| Molecular Formula | C21H15F4N5OS2 |
| Molecular Weight | 493.50 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Apalutamide Impurity 13 (C21H15F4N5OS2) contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 493.50 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Apalutamide Impurity 13 (CAS 2649802-40-2) is a certified pharmaceutical impurity reference standard with the molecular formula C21H15F4N5OS2 and a molecular weight of 493.50 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.
As a certified reference material (CRM), Apalutamide Impurity 13 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 | C21H15F4N5OS2 |
| Molecular Weight | 493.50 g/mol |
| Purity | >95% |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 2 |
Related Apalutamide Standards
- Apalutamide Impurity 22 (CAS CATO-C4X-274922)
- Apalutamide Impurity 102 (CAS CATO-C4X-2749102)
- Apalutamide Impurity 1 (CAS CATO-C4X-27491)
- Apalutamide Impurity 112 (CAS CATO-C4X-2749112)
- Apalutamide Impurity 35 (CAS CATO-C4X-274935)
- Apalutamide Impurity 10 (CAS CATO-C4X-274910)
- Apalutamide Impurity 5 (CAS CATO-C4X-27495)
- Apalutamide-13C-D3 (CAS 956104-40-8 (Unlabeled))
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