6-methyl-3-phenylisoxazolo[3,4-d]pyridazin-7(6H)-one InChI=1/C12H9N3O2/c1-15-12(16)10-9(7-13-15)11(17-14-10)8-5-3-2-4-6-8/h2-7H,1H isoxazolo[3,4-d]pyridazin-7(6H)-one, 6-methyl-3-phenyl-