英文别名Penoxsulam Impurity 1; 4,4'-(1,2-Hydrazinediyl)bis(2-chloro-5-methoxypyrimidine); 2-chloro-4-[2-(2-chloro-5-methoxypyrimidin-4-yl)hydrazin-1-yl]-5-methoxypyrimidine; Penoxsulam Impurity; Pyrimidine, 4,4'-(1,2-hydrazinediyl)bis[2-chloro-5-methoxy-; Bis-CHYMP 
