6-Methyl-4,7,7-trioxo-5,6-dihydrothieno[2,3-b]thiopyran-2-sulfonamide
CAS: 935289-26-2
Category: Organic Pharmaceutical Intermediates
| Purity | Research Grade ≥95%; High-Purity Grade ≥98%; Pharmaceutical Intermediate Grade ≥99% |
| Molecular Formula | C8H7NO4S3 |
| Molecular Weight | 277.34 |
| Appearance | White to off-white crystalline powder or solid |
| Packaging | 1 g, 5 g, 10 g, 25 g aluminum foil bags or amber glass bottles for laboratory use; 100 g, 500 g, 1 kg HDPE containers for industrial supply |
| Testing Indicators | Appearance — Visual inspection; Identification — FTIR spectroscopy and 1H NMR; Molecular structure confirmation — LC-MS; Purity — HPLC-UV or HPLC-MS (≥98%); Sulfur content — ICP-OES or elemental analysis; Nitrogen content — Elemental analysis; Moisture — Karl Fischer titration; Residual solvents — GC analysis according to ICH Q3C guidelines; Heavy metals — ICP-MS/ICP-OES. |
| Storage Notes | Store in a cool, dry, and well-ventilated place. Keep container tightly closed and protected from moisture, direct sunlight, and excessive heat. Store under inert atmosphere when possible for long-term preservation. Avoid contact with strong oxidizing agents, strong acids, and strong bases. |
| Lead Time | 10 days |
Used as an advanced sulfur-containing heterocyclic pharmaceutical intermediate. It is mainly utilized in medicinal chemistry research and the synthesis of bioactive sulfonamide derivatives. The compound serves as a building block for the development of enzyme inhibitors and other therapeutic candidates.