51244-56-5 6-(2-(Diethylamino)ethyl)-3-methyl-4-phenylisoxazolo(3,4-a)pyridazin-7(6H)-one BRN 1023732 Isoxazolo(3,4-a)pyridazin-7(6H)-one, 6-(2-(diethylamino)ethyl)-3-methyl-4-phenyl-