Product Description 4-Maleimidobutyric acid hydrazide Other Details Molecular Formula: C8H11N3O3 Molecular Weight: 197.19 CAS Number: 181148-01-6 Minimum Purity: 0.95 UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 100mg Leadtime:20 Days Sizes 2: 250mg Leadtime:20 Days Sizes 3: 1g Leadtime:20 Days