| CAS No. | 866050-89-7 |
| Molecular Formula | C22H15N3O3S2 |
| Molecular Weight | 433.50 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 N-(4-(2-(1,3-dioxoisoindolin-2-yl)ethyl)thiazol-2-yl)benzo[b]thiophene-2-carboxamide.
N-(4-(2-(1,3-dioxoisoindolin-2-yl)ethyl)thiazol-2-yl)benzo[b]thiophene-2-carboxamide (CAS 866050-89-7), molecular formula C22H15N3O3S2 and molecular weight 433.50 g/mol, is a CATO reference standard with documented purity and traceability.
N-(4-(2-(1,3-dioxoisoindolin-2-yl)ethyl)thiazol-2-yl)benzo[b]thiophene-2-carboxamide (C22H15N3O3S2) contains a steroid 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
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 | C22H15N3O3S2 |
| Molecular Weight | 433.50 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |