SEARCH Articles Figures Tables 2-Amino-3-hydroxy-5,6-dimethylpyrazine 2-Bromo-3-hydroxy-5,6-dimethylpyrazine 2-Carboxy-3-hydroxy-5,6-dimethylpyrazine 2-Chloro-5-hydroxy-3,6-dimethylpyrazine 2-Cyano-5-hydroxy-3,6-dimethylpyrazine 2-Ethyl-3-hydroxy-5,6-dimethylpyrazine 2-Hydroxy-3,5-dimethylpyrazine 1 -oxide 2-Hydroxy-3-isobutyl-5,6-dimethylpyrazine 2-Hydroxy-3-methoxy-5,6-dimethylpyrazine 2-Hydroxy-5-methoxy-3,6-dimethylpyrazine 1,4-dioxide 2-Hydroxy-5-methoxycarbonyl-3,6-dimethylpyrazine