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5-Hydroxy-2-methylsulfanyl-pyrimidine-4-carboxylic acid

5,6-Dichloro-1h-pyridazin-4-one

4-Isopropoxy-6-methyl-pyrimidin-2-ylamine

1-(4-Chloro-phenyl)-pyrimidine-2,4,6-trione

3-Chloro-6-pyridin-3-yl-pyridazine

3-Chloro-6-pyridin-4-yl-pyridazine

3-Bromo-6-pyridin-2-yl-pyridazine

3-Bromo-6-pyridin-3-yl-pyridazine

3-Bromo-6-tert-butyl-pyridazine

3-Bromo-6-cyclopropyl-pyridazine