15707-23-0 2-ETHYL-3-METHYLPYRAZINE 2-Ethyl-3-methyl pyrazine 2-Methyl-3-ethylpyrazine 3-Ethyl-2-methylpyrazine 5-23-05-00418 (Beilstein Handbook Reference) BRN 0956775 EINECS 239-799-8 FEMA No. 3155 Pyrazine, 2-ethyl-3-methyl-