Product Description Putrescine free base extrapure, 99% Other Details Molecular Formula: 0 Molecular Weight: 0 CAS Number: 110-60-1 Minimum Purity: 0 UN Number: UN No.:2923 Dangerous Goods Class: IMCO Class No.:8(6.1) Packing Group: Packing Group:II Storage Temperature: Room Temperature Sizes 1: 0 Leadtime:45 - 60 Days Sizes 2: 0 Leadtime:0 Sizes 3: 0 Leadtime:0