| CAS No. | 877237-44-0 |
| Molecular Formula | C17H23N3O4S |
| Molecular Weight | 365.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
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.
2-((2-Cyano-3-methylbutan-2-yl)amino)-2-oxoethyl 2-acetamido-4,5-dimethylthiophene-3-carboxylate (CAS 877237-44-0), molecular formula C17H23N3O4S and molecular weight 365.45 g/mol, is a CATO reference standard with documented purity and traceability.
2-((2-Cyano-3-methylbutan-2-yl)amino)-2-oxoethyl 2-acetamido-4,5-dimethylthiophene-3-carboxylate (C17H23N3O4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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).
CATO manufactures 2-((2-Cyano-3-methylbutan-2-yl)amino)-2-oxoethyl 2-acetamido-4,5-dimethylthiophene-3-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 | C17H23N3O4S |
| Molecular Weight | 365.45 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |