| CAS No. | 311810-06-7 |
| Molecular Formula | C21H16N4OS3 |
| Molecular Weight | 436.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The occurrence of 2-{[2-(3,5-dimethyl-1H-pyrazol-1-yl)-2-oxoethyl]sulfanyl}-4,6-bis(thiophen-2-yl)pyridine-3-carbonitrile is closely related to a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-{[2-(3,5-dimethyl-1H-pyrazol-1-yl)-2-oxoethyl]sulfanyl}-4,6-bis(thiophen-2-yl)pyridine-3-carbonitrile (CAS 311810-06-7), molecular formula C21H16N4OS3 and molecular weight 436.57 g/mol, is a CATO reference standard with documented purity and traceability.
2-{[2-(3,5-dimethyl-1H-pyrazol-1-yl)-2-oxoethyl]sulfanyl}-4,6-bis(thiophen-2-yl)pyridine-3-carbonitrile (C21H16N4OS3) contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. Its physicochemical properties are representative of its class; 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.
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 | C21H16N4OS3 |
| Molecular Weight | 436.57 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 3 |