SEARCH Articles Figures Tables 2- Carbamoyl-3-hydroxy-5-methylpyrazine 2- Chloro-3-hydroxy-5-methylpyrazine 2-Amino-3-cyano-6-hydroxy-5-methylpyrazine 1-oxide 2-Amino-3-hydroxy-5-methylpyrazine 2-Hydroxy-3-isobutyl-5-methylpyrazine 2-Methylpyrazine 3- Acetamido-2-cyano-5-hydroxy-6-methylpyrazine 1-oxide Methylpyrazines