Sodium stibocaptate (Astiban; TWSb/6)
CAS: 3064-61-7
Category: Inorganic Chemicals
| Purity | Research Grade ≥98%; Pharmaceutical Reference Grade ≥99%; Analytical Grade ≥99% |
| Molecular Formula | C4H4NaO3S2Sb |
| Molecular Weight | 318.94 |
| Appearance | White to off-white crystalline powder; odorless or slightly characteristic odor; hygroscopic solid |
| Packaging | 1 g, 5 g, 10 g amber glass bottles for research applications; 25 kg fiber drums or HDPE containers with inner polyethylene bags for industrial/pharmaceutical use |
| Testing Indicators | Appearance — Visual inspection; Identification — FTIR spectroscopy and mass spectrometry; Antimony content — ICP-OES or ICP-MS analysis; Sulfur content — Elemental analysis or ion chromatography; Purity — HPLC or ion chromatography; Sodium content — Atomic absorption spectroscopy (AAS); Moisture content — Karl Fischer titration; Residual solvents — GC analysis where applicable; Heavy metals — ICP-MS according to USP/EP methods. |
| Storage Notes | Store in a cool, dry, well-ventilated area away from direct sunlight. Keep container tightly sealed and protected from moisture. Avoid contact with acids, strong oxidizing agents, and reducing agents. Store according to applicable regulations for antimony-containing compounds. |
| Lead Time | 10 days |
Sodium stibocaptate, also known as Astiban or TWSb/6, is an organoantimony compound containing antimony and thiol groups. It has historically been investigated and used as an antimonial pharmaceutical compound, particularly in studies and treatments related to parasitic infections such as leishmaniasis. It is also used as a reference compound in pharmaceutical research, analytical studies, and antimony chemistry investigations.