SEARCH Articles Figures Tables 2-Ethyl-3- pyrazine, oxidation 2-[2 -Hydroxyimino-2 - ethyl pyrazine Ceratitis capitata 2,5-dimethyl-3-ethyl-pyrazines Myrmica 2,5-dimethyl-3-ethyl-pyrazines Myrmica lobicomis 2.5- dimethyl-3-ethyl-pyrazines Myrmica ruginodis 2.5- dimethyl-3-ethyl-pyrazines Myrmica schencki 2.5- dimethyl-3-ethyl-pyrazines Pheidole pallida 2,5-dimethyl-3-ethyl-pyrazines Pyrazine 2- ethyl-3-methyl Pyrazine ethyl-3,6-dimethyl