Product Description Ammonium tetrathiotungstate Other Details Molecular Formula: (NH4)2WS4 Molecular Weight: 348.18 CAS Number: 13862-78-7 Minimum Purity: 0.95 UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 1g Leadtime:20 Days Sizes 2: 5g Leadtime:20 Days Sizes 3: 0 Leadtime:0