| CAS No. | 339020-01-8 |
| Molecular Formula | C25H21Cl2N3O8S |
| Molecular Weight | 594.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
2,4-Dimethyl 5-{bis[(4-chlorophenyl)carbamoyl]amino}-3-(2-methoxy-2-oxoethyl)thiophene-2,4-dicarboxylate (CAS 339020-01-8), molecular formula C25H21Cl2N3O8S and molecular weight 594.42 g/mol, is a CATO reference standard with documented purity and traceability.
2,4-Dimethyl 5-{bis[(4-chlorophenyl)carbamoyl]amino}-3-(2-methoxy-2-oxoethyl)thiophene-2,4-dicarboxylate (C25H21Cl2N3O8S) 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2,4-Dimethyl 5-{bis[(4-chlorophenyl)carbamoyl]amino}-3-(2-methoxy-2-oxoethyl)thiophene-2,4-dicarboxylate 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 | C25H21Cl2N3O8S |
| Molecular Weight | 594.42 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |