3,5-Bis((2-oxo-2-phenylethyl)thio)isothiazole-4-carbonitrile CAS 24134-79-0
| CAS No. | 24134-79-0 |
| Molecular Formula | C20H14N2O2S3 |
| Molecular Weight | 410.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3,5-Bis((2-oxo-2-phenylethyl)thio)isothiazole-4-carbonitrile is closely related to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3,5-Bis((2-oxo-2-phenylethyl)thio)isothiazole-4-carbonitrile (CAS 24134-79-0) is a high-purity analytical reference standard with the molecular formula C20H14N2O2S3 and a molecular weight of 410.53 g/mol.
3,5-Bis((2-oxo-2-phenylethyl)thio)isothiazole-4-carbonitrile (C20H14N2O2S3) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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), 3,5-Bis((2-oxo-2-phenylethyl)thio)isothiazole-4-carbonitrile 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.
Physical & Chemical Properties
| Molecular Formula | C20H14N2O2S3 |
| Molecular Weight | 410.53 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 3 |
Recommended Standards
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