| CAS No. | 478047-49-3 |
| Molecular Formula | C18H15NO4S2 |
| Molecular Weight | 373.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Methyl 3-[2-(4-methyl-2-phenyl-1,3-thiazol-5-yl)-2-oxoethoxy]-2-thiophenecarboxylate.
Methyl 3-[2-(4-methyl-2-phenyl-1,3-thiazol-5-yl)-2-oxoethoxy]-2-thiophenecarboxylate (CAS 478047-49-3), molecular formula C18H15NO4S2 and molecular weight 373.45 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Methyl 3-[2-(4-methyl-2-phenyl-1,3-thiazol-5-yl)-2-oxoethoxy]-2-thiophenecarboxylate (C18H15NO4S2) 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C18H15NO4S2 |
| Molecular Weight | 373.45 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |