Calcitriol Impurity 17 CAS 1883417-56-8
| CAS No. | 1883417-56-8 |
| Molecular Formula | C39H72O3Si2 |
| Molecular Weight | 645.16 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 645.16 g/mol gives Calcitriol Impurity 17 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Calcitriol Impurity 17 (CAS 1883417-56-8, C39H72O3Si2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Calcitriol Impurity 17 (C39H72O3Si2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. Its high carbon-to-hydrogen ratio confers good lipid solubility, 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).
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), Calcitriol Impurity 17 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 | C39H72O3Si2 |
| Molecular Weight | 645.16 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
Related Calcitriol Standards
- Calcitriol Impurity 14 (CAS 140710-98-1)
- Calcitriol Impurity 8 (CAS 140710-96-9)
- Calcitriol impurity 39 (CAS 161885-78-5)
- Calcitriol Impurity 13 (CAS 169900-32-7)
- Calcitriol Impurity 18 (CAS 147125-21-1)
- Calcitriol Impurity 19 (CAS CATO-C4X-151019)
- Calcitriol Impurity 20 (CAS CATO-C4X-151020)
- Calcitriol Impurity 24 (CAS CATO-C4X-151024)
Recommended Standards
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- Tert-butyl 4-(diethylamino)piperidine-1-carboxylate (CAS 1281634-35-2)
- 2-(Prop-2-yn-1-yl)-1,2,3,4-tetrahydroisoquinolin-7-ol (CAS 1018448-54-8)
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