CAS 39716-45-5 appears in our catalog under these names: 2,5,6,7,8,9-Hexahydro-3h-cyclohepta[c]pyridazin-3-one, 95%, 6,7,8,9-Tetrahydro-2H-cyclohepta(c)pyridazin-3(5H)-one, 98+%, 6,7,8,9-Tetrahydro-2H-cyclohepta[c]pyridazin-3(5H)-one, 95%, 95%, 2,5,6,7,8,9-hexahydro-3H-cyclohepta[c]pyridazin-3-one. Offered by: Combi-blocks, AmBeed, Chemat, Fluorochem. Available pack sizes: 1g, 250mg, 10g, 100mg, 5g.