2-ETHYL-3(5/6)-DIMETHYL PYRAZINE PRODUCT NAME 2-ETHYL-3(5/6)-DIMETHYL PYRAZINE SYNONYM 3-ETHYL-2,5(6)-DIMETHYLPYRAZINE; 3,5(6)-COCOA PYRAZINE CODE 3128 CAS Nº 55031-15-7 FEMA Nº 3149 EINECS 236-417-1 FORMULA C8 H12 N2 MOLECULAR WEIGHT 136,20