((4-Allylhexahydro-6-methyl-3-oxo-4-pyridazinyl)carbonyl)urea 20959-15-3 3-Methyl-5-allyl-5-allophanyl-hexahydropyridazone-6 5-25-07-00234 (Beilstein Handbook Reference) BRN 0922230 Urea, ((4-allylhexahydro-6-methyl-3-oxo-4-pyridazinyl)carbonyl)-