Ethyl 2-(4,6-dimethyl-2-oxo-3-(o-tolylsulfonyl)pyridin-1(2H)-yl)acetate CAS 321431-61-2
| CAS No. | 321431-61-2 |
| Molecular Formula | C18H21NO5S |
| Molecular Weight | 363.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 2-(4,6-dimethyl-2-oxo-3-(o-tolylsulfonyl)pyridin-1(2H)-yl)acetate (CAS 321431-61-2) is a high-purity analytical reference standard with the molecular formula C18H21NO5S and a molecular weight of 363.43 g/mol.
The molecular framework of Ethyl 2-(4,6-dimethyl-2-oxo-3-(o-tolylsulfonyl)pyridin-1(2H)-yl)acetate (C18H21NO5S) is characterized by a flavonoid core, an amide group, a sulfone 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Ethyl 2-(4,6-dimethyl-2-oxo-3-(o-tolylsulfonyl)pyridin-1(2H)-yl)acetate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C18H21NO5S |
| Molecular Weight | 363.43 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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