| CAS No. | 1858241-92-5 |
| Molecular Formula | C20H20N2O4S2 |
| Molecular Weight | 416.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Diethyl 2,2'-(1,3-phenylene)bis(4-methylthiazole-5-carboxylate) (CAS 1858241-92-5), molecular formula C20H20N2O4S2 and molecular weight 416.51 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Diethyl 2,2'-(1,3-phenylene)bis(4-methylthiazole-5-carboxylate) is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 416.51 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).
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 Diethyl 2,2'-(1,3-phenylene)bis(4-methylthiazole-5-carboxylate) 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.
| Molecular Formula | C20H20N2O4S2 |
| Molecular Weight | 416.51 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |