Product Description 2,4,4'-Trimethoxychalcone Other Details Molecular Formula: C18H18O4 Molecular Weight: 298.3 CAS Number: 18493-34-0 Minimum Purity: 0.95 UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 5g Leadtime:65 Days Sizes 2: 10g Leadtime:65 Days Sizes 3: 25g Leadtime:65 Days