Product Description Copper(I) oxide Other Details Molecular Formula: Cu2O Molecular Weight: 143.1 CAS Number: 1317-39-1 Minimum Purity: 99%, metals basis 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: 25g Leadtime:20 Days