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(2,6-Difluoro-pyridin-4-yl)-hydrazine

2,7-Diamino-benzothiazole

2-Amino-4-(1h)-pyridinone

2,3,5,6-Tetrachloropyridin-4-amine

4-Amino-3-mercaptopyridine

4-Bromo-2-methylbenzothiazole

2-Mercaptobenzothiazole-6-carbonitrile

2-Methyl-6-cyanobenzothiazole

1,2-Benzisothiazole-5-amine

3-Amino-5-chloropyrazine-2-carbonitrile