4-Chloro-5-ethoxy-2-phenyl-3(2H)-pyridazinone(5509-73-9) IR1

4-Chloro-5-ethoxy-2-phenyl-3(2H)-pyridazinone(5509-73-9)IR2 4-Chloro-5-ethoxy-2-phenyl-3(2H)-pyridazinone(5509-73-9)IR1 4-Chloro-5-methoxypyridazin-3(2H)-one(63910-43-0)¹HNMR 5-Methoxypyridazin-3(2H)-one(123696-01-5)¹HNMR 4-Chloro-5-hydroxy-3(2H)-pyridazinone(64178-58-1)¹HNMR