7,7-Dioxido-5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-yl isobutyrate CAS 339018-79-0
| CAS No. | 339018-79-0 |
| Molecular Formula | C11H14O4S2 |
| Molecular Weight | 274.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
7,7-Dioxido-5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-yl isobutyrate (CAS 339018-79-0), molecular formula C11H14O4S2 and molecular weight 274.36 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H14O4S2, 7,7-Dioxido-5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-yl isobutyrate contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 274.36 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
CATO manufactures 7,7-Dioxido-5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-yl isobutyrate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H14O4S2 |
| Molecular Weight | 274.36 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Sulfur Atoms | 2 |
Related Dioxido Standards
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