ethanethiol + pyruvate + NH4(+) => S-ethyl-L-cysteine + H2O
ethanethiol + pyruvate + nh4(+) => s-ethyl-l-cysteine + h2o
ethanethiol + pyruvate + NH4(+) => S-ethyl-L-cysteine + H2O
ethanethiol + pyruvate + nh4(+) => s-ethyl-l-cysteine + h2o