4-亚硝基吡啶 N-氧化物

1-methoxypyridin-4-one

dichlorozinc,4-[ethyl(2-hydroxyethyl)amino]benzenediazonium,chloride

(1-oxidopyridin-1-ium-4-yl)-pyridin-4-yldiazene

2-氯-4-甲氧基吡啶