| CAS No. | 956742-22-6 |
| Molecular Formula | C20H27N3O5S2 |
| Molecular Weight | 453.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Ethyl (2R)-2-(4-{[(4-hydroxy-6-methylpyrimidin-2-yl)sulfanyl]methyl}benzenesulfonamido)-4-methylpentanoate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 453.58 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies Ethyl (2R)-2-(4-{[(4-hydroxy-6-methylpyrimidin-2-yl)sulfanyl]methyl}benzenesulfonamido)-4-methylpentanoate (CAS 956742-22-6), a certified reference material (molecular formula C20H27N3O5S2, MW 453.58 g/mol) for analytical method development and quality control.
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.
As a certified reference material (CRM), Ethyl (2R)-2-(4-{[(4-hydroxy-6-methylpyrimidin-2-yl)sulfanyl]methyl}benzenesulfonamido)-4-methylpentanoate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
| Molecular Formula | C20H27N3O5S2 |
| Molecular Weight | 453.58 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 |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |