Product Description Shikonin Other Details Molecular Formula: C16H16O5 Molecular Weight: 288.3 CAS Number: 517-89-5 Minimum Purity: 0.98 UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 5mg Leadtime:20 Days Sizes 2: 10mg Leadtime:20 Days Sizes 3: 25mg Leadtime:20 Days