1-(Cyclohexylcarbonyl)-5-(1,4,5,6-tetrahydro-4-methyl-6-oxo-3-pyridazinyl)-1H-benzotriazole 1H-Benzotriazole, 1-(cyclohexylcarbonyl)-5-(1,4,5,6-tetrahydro-4-methyl-6-oxo-3-pyridazinyl)- 5-Methyl-6-(1'-cyclohexanoyl-benzotriazol-5'-yl)-4,5-dihydro-3(2H)pyridazinone 85634-51-1