Eldecalcitol Impurity 13 CAS CATO-C4X-214013
| CAS No. | CATO-C4X-214013 |
| Molecular Formula | C42H71O5PSi3 |
| Molecular Weight | 771.24 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Eldecalcitol Impurity 13 (CAS CATO-C4X-214013, C42H71O5PSi3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C42H71O5PSi3, Eldecalcitol Impurity 13 contains a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 771.24 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.
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.
Physical & Chemical Properties
| Molecular Formula | C42H71O5PSi3 |
| Molecular Weight | 771.24 g/mol |
| Purity | 97%+ |
| 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) | 7.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Eldecalcitol Standards
- Eldecalcitol Impurity 11 (CAS CATO-C4X-214011)
- Eldecalcitol Impurity 12 (CAS 1809782-28-2)
- Eldecalcitol Impurity 18 (CAS CATO-C4X-214018)
- Eldecalcitol Impurity 15 (CAS CATO-C4X-214015)
- Eldecalcitol Impurity 8 (CAS CATO-C4X-21408)
- Eldecalcitol Impurity 14 (CAS CATO-C4X-214014)
- Eldecalcitol Impurity 6 (CAS 2569209-09-0)
- Eldecalcitol Impurity 77 (CAS CATO-C4X-214077)
Recommended Standards
- IDT8-2CHO (CAS 2206677-82-7)
- Calcitriol Impurity 22 (CAS 200636-54-0)
- 4,4''''-Dibromo-5''-(4'-bromo-[1,1'-biphenyl]-4-yl)-1,1':4',1'':3'',1''':4''',1''''-quinquephenyl (CAS 685114-64-1)
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