2-(1,1-Dioxidodihydro-2H-thiopyran-3(4H)-ylidene)acetic acid CAS 1344846-39-4
| CAS No. | 1344846-39-4 |
| Molecular Formula | C7H10O4S |
| Molecular Weight | 190.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(1,1-Dioxidodihydro-2H-thiopyran-3(4H)-ylidene)acetic acid (CAS 1344846-39-4), molecular formula C7H10O4S and molecular weight 190.22 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-(1,1-Dioxidodihydro-2H-thiopyran-3(4H)-ylidene)acetic acid (C7H10O4S) is characterized by a sulfone group, a carboxylic acid group, 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).
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), 2-(1,1-Dioxidodihydro-2H-thiopyran-3(4H)-ylidene)acetic acid 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 | C7H10O4S |
| Molecular Weight | 190.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1991 |
| Sulfur Atoms | 1 |
Recommended Standards
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