(2S,3S,4R)-3,4-Bis[(tert-butyldimethylsilyl)oxy]-2-hexacosanoylamino-4-octadecanol CAS 205371-68-2
| CAS No. | 205371-68-2 |
| Molecular Formula | C56H117NO4Si2 |
| Molecular Weight | 924.70 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of (2S,3S,4R)-3,4-Bis[(tert-butyldimethylsilyl)oxy]-2-hexacosanoylamino-4-octadecanol is closely related to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
(2S,3S,4R)-3,4-Bis[(tert-butyldimethylsilyl)oxy]-2-hexacosanoylamino-4-octadecanol (CAS 205371-68-2), molecular formula C56H117NO4Si2 and molecular weight 924.70 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of (2S,3S,4R)-3,4-Bis[(tert-butyldimethylsilyl)oxy]-2-hexacosanoylamino-4-octadecanol (C56H117NO4Si2) is characterized by an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C56H117NO4Si2 |
| Molecular Weight | 924.70 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | -1.0 |
| CAS Registry Year (est.) | 2015 |
| Nitrogen Atoms | 1 |
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