3-[(2,4-dichlorobenzyl)sulfonyl]-1,5-dimethyl-4,5-dihydro-1H-pyrazolo[3,4-d]pyridazin-4-one

3-[(2,4-Dichlorbenzyl)sulfonyl]-1,5-dimethyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyridazin-4-on

3-[(2,4-Dichlorobenzyl)sulfonyl]-1,5-dimethyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyridazin-4-one

3-[(2,4-Dichlorobenzyl)sulfonyl]-1,5-diméthyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyridazin-4-one

3-[(2,4-dichlorobenzyl)sulfonyl]-1,5-dimethyl-4,5-dihydro-1H-pyrazolo[3,4-d]pyridazin-4-one

4H-Pyrazolo[3,4-d]pyridazin-4-one, 3-[[(2,4-dichlorophenyl)methyl]sulfonyl]-1,5-dihydro-1,5-dimethyl-

3-[(2,4-DICHLOROPHENYL)METHYLSULFONYL]-1,5-DIMETHYLPYRAZOLO[3,4-D]PYRIDAZIN-4-ONE

3-{[(2,4-dichlorophenyl)methane]sulfonyl}-1,5-dimethyl-1H,4H,5H-pyrazolo[3,4-d]pyridazin-4-one