Product Description Neocryptotanshinone II Other Details Molecular Formula: C19H22O3 Molecular Weight: 298.4 CAS Number: 27468-20-8 Minimum Purity: 0.95 UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 5mg Leadtime:50 Days Sizes 2: 0 Leadtime:0 Sizes 3: 0 Leadtime:0