| CAS No. | 1583260-08-5 |
| Molecular Formula | C25H49NO6Si |
| Molecular Weight | 487.75 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
(2S,3R,4R,5R)-5-(benzyloxymethyl)-4-[tert-butyl(dimethyl)silyl]oxy-3-methoxy-2-(6-methoxy-3-pyridyl)tetrahydrofuran-2-ol (CAS 1583260-08-5), molecular formula C25H49NO6Si and molecular weight 487.75 g/mol, is a CATO reference standard with documented purity and traceability.
(2S,3R,4R,5R)-5-(benzyloxymethyl)-4-[tert-butyl(dimethyl)silyl]oxy-3-methoxy-2-(6-methoxy-3-pyridyl)tetrahydrofuran-2-ol (C25H49NO6Si) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
| Molecular Formula | C25H49NO6Si |
| Molecular Weight | 487.75 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) | 2.0 |
| CAS Registry Year (est.) | 1993 |
| Nitrogen Atoms | 1 |