CAS 500862-71-5 appears in our catalog under these names: 5-Aminonicotinohydrazide 97%, 5-Aminonicotinohydrazide, 97%, 5-Amino-3-pyridinecarboxylic acid hydrazide, 97%, 97%. Offered by: Ambeed, Fluorochem, Chemat. Available pack sizes: 100mg, 250mg, 1g.