Eldecalcitol Impurity 71 CAS CATO-C4X-214071
| CAS No. | CATO-C4X-214071 |
| Molecular Formula | 2*C41H69O5PSi3 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Eldecalcitol Impurity 71 (CAS CATO-C4X-214071) is a certified pharmaceutical impurity reference standard with the molecular formula C41H69O5PSi3 and a molecular weight of 757.23 g/mol.
Based on its molecular formula C41H69O5PSi3, Eldecalcitol Impurity 71 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 757.23 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).
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 | 2*C41H69O5PSi3 |
| Molecular Weight | 757.23 g/mol |
| Purity | ≥95% |
| 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 33 (CAS 100928-05-0)
- Eldecalcitol Impurity 54 (CAS 100928-07-2)
- Eldecalcitol (CAS 104121-92-8)
- Eldecalcitol Impurity 36 (CAS 1101133-55-4)
- Eldecalcitol impurity 69 (CAS 1217549-27-3)
- Eldecalcitol Impurity 40 (CAS 1217549-29-5)
- Eldecalcitol Impurity 46 (CAS 124905-24-4)
- Eldecalcitol Impurity 53 (CAS 1308304-91-7)
Recommended Standards
- Bicalutamide Impurity 31 (CAS CATO-C4X-101331)
- Carbazochrome Impurity 54 (CAS CATO-C4X-229154)
- Nafamostat Impurity 26 (CAS 1192026-58-6)
- Mirogabalin Impurity 18 (CAS 1138245-49-4)
- 3-(2-(Piperidin-1-yl)ethoxy)benzoic acid (CAS 765270-93-7)
- 2-(4-Bromophenyl)-4-chloro-7,8-dihydro-5H-pyrano[4,3-d]pyrimidine (CAS 1956326-67-2)
- S-(-)-Etomoxir (CAS 828934-40-3)
- PPPA (CAS 113190-92-4)
- 5-Chloro-2-morpholino-6-nitrooxazolo[4,5-b]pyridine (CAS 1801345-37-8)
- Semaglutide Impurity 6 (CAS 62-57-7)
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