Calcipotriol Impurity 24 CAS 112828-13-4
| CAS No. | 112828-13-4 |
| Molecular Formula | C34H60O3Si2 |
| Molecular Weight | 573.01 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Calcipotriol Impurity 24 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.
As a process- or degradation-related impurity, Calcipotriol Impurity 24 (CAS 112828-13-4, C34H60O3Si2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C34H60O3Si2, Calcipotriol Impurity 24 contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 573.01 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).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Physical & Chemical Properties
| Molecular Formula | C34H60O3Si2 |
| Molecular Weight | 573.01 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
Related Calcipotriol Standards
- Calcipotriol Impurity 28 (CAS CATO-C4X-122228)
- Calcipotriol Impurity 15 (CAS 104846-63-1)
- Calcipotriol Impurity 33 (CAS 112849-18-0)
- Calcipotriol Impurity 23 (CAS 1630745-25-3)
- Calcipotriol Impurity 11 (CAS 112849-17-9)
- Calcipotriol Impurity 29 (CAS CATO-C4X-122229)
- Calcipotriol Impurity 30 (CAS 115648-68-5)
- Calcipotriol Impurity 31 (CAS 866406-02-2)
Recommended Standards
- C18 Ceramide-d7(d18:1-d7/18:0) (CAS 1840942-14-4)
- Calcitriol Impurity 21 (CAS 115648-67-4)
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- Fluticasone Impurity 28 (CAS CATO-C4X-165028)
- Latanoprost Impurity 20 (CAS 881647-78-5)
- Ubidecarenone Impurity 2(Coenzyme Q10) (CAS 65085-29-2)
- Mitiglinide Impurity 3 (CAS 1266354-02-2)
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