3,4-Dihydro-2H-thiopyran-5-carboxylic acid 1-oxide CAS 98136-05-1
| CAS No. | 98136-05-1 |
| Molecular Formula | C6H8O3S |
| Molecular Weight | 160.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,4-Dihydro-2H-thiopyran-5-carboxylic acid 1-oxide (CAS 98136-05-1) is a high-purity analytical reference standard with the molecular formula C6H8O3S and a molecular weight of 160.19 g/mol.
Based on its molecular formula C6H8O3S, 3,4-Dihydro-2H-thiopyran-5-carboxylic acid 1-oxide contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 160.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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), 3,4-Dihydro-2H-thiopyran-5-carboxylic acid 1-oxide 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 | C6H8O3S |
| Molecular Weight | 160.19 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.) | 1985 |
| Sulfur Atoms | 1 |
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