(2R,3R,4S,5R,6S)-6-(6-Chloro-9H-purin-9-yl)-6-(ethylthio)hexane-1,2,3,4,5-pentayl pentaacetate CAS 74281-90-6
| CAS No. | 74281-90-6 |
| Molecular Formula | C23H29ClN4O10S |
| Molecular Weight | 589.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(2R,3R,4S,5R,6S)-6-(6-Chloro-9H-purin-9-yl)-6-(ethylthio)hexane-1,2,3,4,5-pentayl pentaacetate (CAS 74281-90-6), molecular formula C23H29ClN4O10S and molecular weight 589.02 g/mol, is a CATO reference standard with documented purity and traceability.
(2R,3R,4S,5R,6S)-6-(6-Chloro-9H-purin-9-yl)-6-(ethylthio)hexane-1,2,3,4,5-pentayl pentaacetate (C23H29ClN4O10S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C23H29ClN4O10S |
| Molecular Weight | 589.02 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
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