6-氯-4-甲基-3-哒嗪酮;6-氯-4-甲基-3(2H)-哒嗪酮;
3-Chlor-6-oxo-5-methyl-1,6-dihydro-pyridazin;6-chloro-4-methyl-2H-pyridazin-3-one;6-Chlor-4-methyl-2H-pyridazin-3-on;
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