1. Cas no.: 36635-61-7 2. Molecular formular: c9h9no2s 3. Molecular weight: 195.24 4. Storage: keep in sealed and cold storage. 5. Use: intermediate in the synthesis of pharmaceuticals ItemTesting result Appearance: off- white crystalline powder Loss on drying: 0.10% Residue on ignition:0.06% Heavy metal:Conforms Assay:99.0% Ir:Conforms 1kg/foil bag, 25kgs/drum, or according to your request.