Product Description Maleic acid hydrazide Other Details Molecular Formula: C4H4N2O2 Molecular Weight: 112.09 CAS Number: 123-33-1 Minimum Purity: 99% (HPLC) UN Number: N/A Dangerous Goods Class: N/A Packing Group: N/A Storage Temperature: N/A Sizes 1: 5g Leadtime:20 Days Sizes 2: 25g Leadtime:20 Days Sizes 3: 100g Leadtime:20 Days