3(2H)-Pyridazinone, 5-amino-4-chloro-2-(5,6-dihydroxy-1,3-cyclohexadien-1-yl)- 5-Amino-4-chloro-2-(2,3-cis-dihydroxy-4,6-cyclohexadiene)-2H-pyridazin-3-one 5-Amino-4-chloro-2-(5,6-dihydroxy-1,3-cyclohexadien-1-yl)-3(2H)-pyridazinone 50512-55-5 Chloridazondihydrodiol