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 4,7-Dichlorothieno[2,3-d]pyridazine 6-(Trifluoromethyl)pyrazin-2-amine Methyl 3-amino-6-bromopyrazine-2-carboxylate 2-Pyrazinecarboxylic acid ethyl ester
 8-Bromoimidazo[1,2-a]pyrazine 8-Chloroimidazo[1,2-a]pyrazine 2-Chloro-6-cyanopyrazine 3-Pyrazin-2-yl-propionic acid
 2-Pyrazinylmethanol 2-Pyrazin-2-ylethanol 2-Amino-3-chloropyrazine Ethyl 3-chloropyrazine-2-carboxylate
 6,8-Dibromoimidazol[1,2-a]pyrazine 2-Chloro-3-ethylpyrazine 3-Chloro-2-hydrazino-1,2-dihydropyrazine hydrochloride 5,6-Dimethylpyrazin-2-amine
 Pyrazin-2-ol Ethyl 5,6,7,8-tetrahydroimidazo[1,2-a]pyrazine-2-carboxylate 2-Bromo-5-iodopyrazine Ethyl 3-oxo-3-pyrazin-2-yl-propionate
 2-Chloro-6-(trifluoromethyl)pyrazine Pyrazine-2-carboxylic acid methyl ester 6-Aminopyrazine-2-carboxylic acid 3,4-Pyridazinediamine
 5,6-Dichloro-2,3-pyrazinedicarboxylic acid 2-Amino-5-bromopyrazine 5-Chloro-2,3-dimethylpyrazine 2,3-Dimethylpyrazine
 2-Mercaptomethylpyrazine 2-Amino-5-Bromo-3-methoxypyrazin 2,3-Diiodopyrazine 2,6-Diiodopyrazine
 Pyrazine-2-carbaldehyde Ethyl 7-aminothieno[2,3-b]pyrazine-6-carboxylate 1-Bromo-3-methyl-imidazo[1,5-a]pyrazine 2-Bromopyrazine
 5,6-Dichloro-2,3-dicyanopyrazine Thieno[2,3-b]pyrazine 2-Amino-5-bromo-3-(methylamino)pyrazine 3-Chloropyrazine-2-carbonitrile
 3-Hydroxypyrazine-2-carboxamide 6-Methyl-)2-Pyrazinecarboxylicacid 5-Methylpyrazin-2-amine 6-Methylpyrazin-2-ylamine
 5-Methyl-2-pyrazinecarboxylic acid 2-Hydrazinylpyrazine 2-Amino-6-bromopyrazine 2-Pyrazinamine, 5-methoxy-
 2-Pyrazinecarboxylic acid, 3-bromo-, methyl ester 5-Methylpyrazine-2-carbonylchloride 2-Pyrazinecarboxaldehyde, 5-methyl- Aminopyrazine
 2-Fluoropyrazine 6-Chloropyrazin-2-ol 3-(Trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazine hydrochloride 2,3-Dichloropyrazine
 2,6-Dimethoxypyrazine 2,6-Dichloropyrazine 2-Amino-3-methoxypyrazine 2,3-Pyrazinecarboxylic anhydride
 2-Chloro-3-(chloromethyl)pyrazine 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one 2-Amino-3-hydroxypyrimidine Pyrazine-2,6-diamine
 Pyrazinecarboxamide, 5-(hydroxymethyl)- 6-Methylpyrazine-2-carboxylic acid methyl ester Methyl 5-methylpyrazine-2-carboxylate 3-Methylpyrazine-2-carboxylic acid methyl ester
 2-Pyrazinecarboxylic acid, 3-methyl- 6-(Dimethylamino)pyrazine-2-carboxylic acid 3-Methoxypyrazine-2-carboxylic acid 2-Amino-5-pirazinecarboxylic acid
 2-Pyrazinecarboxylic acid, 5-methoxy- 6-Bromo-2-pyrazinecarboxylic acid methyl ester 2-Chloro-3-methoxypyrazine Pyrazinamine, 3-chloro-5,6-dimethyl-(9ci)
 (Pyrazin-2-yl)methanaminehydrochloride Pyrazine, 2-(chloromethyl)- 2-Chloro 3,5-dimethyl pyarazine 2-Methyl-6-chloropyrazine
 5-Bromopyrazin-2-ol Methyl 2-pyrazineacetate 5-Bromopyrazine-2-carboxamide 5-Chloropyrazine-2-carboxylic acid
 6-Chloro-2-pyrazinecarboxamide 2-Pyrazinecarbonitrile, 5-chloro- 6-Fluoro-3-oxo-3,4-dihydropyrazine-2-carbonitrile 3,6-Difluoropyrazine-2-carbonitrile
 Methyl 6-fluoro-3-hydroxypyrazine-2-carboxylate 3,6-Difluoro-pyrazine-2-carboxylic acid methyl ester 3,6-Dichloropyrazine-2-carbonitrile 3,6-Dichloropyrazine-2-carboxylicacid
 3,6-Dichloro-pyrazine-2-carboxylic acid methyl ester 2-Pyrazin-2-ylethanethiol 5-HydroxyPyrazine-2-carboxylic acid 5,6,7,8-Tetrahydro-[1,2,4]triazolo[4,3-a]pyrazine hydrochloride
 2-Chloro-5-methoxypyrazine 2-Amino-5-chloropyrazine 2-Chloro-6-aminopyrazine Methyl 5-chloropyrazine-2-carboxylate
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