4,5-Ethylenedithio-1,3-dithiol-2-one CAS 74962-29-1
| CAS No. | 74962-29-1 |
| Molecular Formula | C5H4OS4 |
| Molecular Weight | 208.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4,5-Ethylenedithio-1,3-dithiol-2-one is closely related to sulfur-containing functionality, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4,5-Ethylenedithio-1,3-dithiol-2-one (CAS 74962-29-1) is a high-purity analytical reference standard with the molecular formula C5H4OS4 and a molecular weight of 208.34 g/mol.
The molecular framework of 4,5-Ethylenedithio-1,3-dithiol-2-one (C5H4OS4) is characterized by sulfur-containing functionality, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
As a certified reference material (CRM), 4,5-Ethylenedithio-1,3-dithiol-2-one 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 | C5H4OS4 |
| Molecular Weight | 208.34 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1978 |
| Sulfur Atoms | 4 |
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