Methyl 5-hydroxypyrazine-2-carboxylate
3,5-Dibromo-2-hydroxypyrazine
5-Chloro-2-hydroxypyrazine
5-Chloro-6-ethyl-3-hydroxypyrazine-2-carboxamide
5-Hydroxypyrazine-2-carboxamide
3-Carbamoyl-6-hydroxypyrazine-2-carboxylic acid
N'-Hydroxypyrazine-2-carboximidamide
