Paricalcitol Impurity 36 CAS CATO-C4X-138736
| CAS No. | CATO-C4X-138736 |
| Molecular Formula | C27H42O |
| Molecular Weight | 382.62 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Paricalcitol Impurity 36 is closely related to a steroid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Paricalcitol Impurity 36 (CAS CATO-C4X-138736) is a certified pharmaceutical impurity reference standard with the molecular formula C27H42O and a molecular weight of 382.62 g/mol.
Based on its molecular formula C27H42O, Paricalcitol Impurity 36 contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 382.62 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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), Paricalcitol Impurity 36 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 | C27H42O |
| Molecular Weight | 382.62 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Paricalcitol Standards
- Paricalcitol Impurity 32 (CAS 63819-60-3)
- Paricalcitol Impurity 34 (CAS 1715-86-2)
- Paricalcitol Impurity 29 (CAS 139356-37-9)
- Paricalcitol Impurity 6 (CAS CATO-C4X-13876)
- Paricalcitol Impurity 7 (CAS CATO-C4X-13877)
- Paricalcitol Impurity 35 (CAS CATO-C4X-138735)
- Paricalcitol Impurity 11 (CAS 95716-69-1)
- Paricalcitol Impurity 20 (CAS 342645-83-4)
Recommended Standards
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- Orlistat Impurity 24 (CAS CATO-C4X-149924)
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