Product Description Uranine K Other Details Molecular Formula: C20H10K2O5 Molecular Weight: 408.49 CAS Number: 6417-85-2 Minimum Purity: 0 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