Eldecalcitol Impurity 20 CAS 342645-84-5
| CAS No. | 342645-84-5 |
| Molecular Formula | C54H106O5Si4 |
| Molecular Weight | 947.76 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Eldecalcitol Impurity 20 (C54H106O5Si4) contains a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 947.76 g/mol, it falls into the high-molecular-weight range.
Eldecalcitol Impurity 20 (CAS 342645-84-5) is a certified pharmaceutical impurity reference standard with the molecular formula C54H106O5Si4 and a molecular weight of 947.76 g/mol.
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 | C54H106O5Si4 |
| Molecular Weight | 947.76 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 2025 |
Related Eldecalcitol Standards
- Eldecalcitol Impurity 26 (CAS CATO-C4X-214026)
- Eldecalcitol Impurity 16 (CAS CATO-C4X-214016)
- Eldecalcitol Impurity 15 (CAS CATO-C4X-214015)
- Eldecalcitol Impurity 11 (CAS CATO-C4X-214011)
- Eldecalcitol Impurity 12 (CAS 1809782-28-2)
- Eldecalcitol Impurity 13 (CAS CATO-C4X-214013)
- Eldecalcitol Impurity 18 (CAS CATO-C4X-214018)
- Eldecalcitol Impurity 8 (CAS CATO-C4X-21408)
Recommended Standards
- 1-(2,6-Bis(3,5-bis(trifluoromethyl)phenyl)-8,9,10,11,12,13,14,15-octahydrodinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin-4-yl)-7-(trifluoromethyl)-1,2,3,4-tetrahydroquinoline (CAS 2157435-18-0)
- nonadecanedioic acid,10-[[3-(dimethyla mino)propyl](1-oxooctyl)amino]-,1,19-bis(2-hexyloctyl) ester (CAS 2036272-60-1)
- 2-trans-Dodecenoyl-Co A (CAS 1066-12-2)
- Copper, [bis(ethanethiolato)indium]bis[μ-(ethanethiolato)]bis(triphenylphosphine)- (CAS 146688-53-1)
- Desmopressin Impurity 8 (CAS CATO-C4X-22158)
- Edoxaban Impurity 98 (p-Toluenesulfonic acid) (CAS CATO-C4X-106398)
- Etomidate Impurity 31 (CAS CATO-C4X-188431)
- 3-[5-(2-fluorophenyl)furan-2-yl]propanoic acid (CAS 24090-21-9)
- Solasodine hydrochloride (CAS 6106-33-8)
- 3-(Pyridin-3-yl)-5-(trifluoromethyl)pyridin-2-amine (CAS 902745-40-8)
- Cyanuric Chloride (CAS 108-77-0)
- 4-chlorophenylethanol (CAS 1875-88-3)
- 1-(2-Bromo-3-iodophenyl)-2-chloroethanone (CAS 1261526-62-8)
- Semaglutide Impurity 125 xTFA Salt (CAS CATO-C4X-2226125)
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