label: 1-O-methyl-20-hydroxy-(5Z,8Z,11Z,14Z)-eicosatetraenoate + O2 <=> 1-O-methyl-8-hydroperoxy-20-hydroxy-(5Z,9E,11Z,14Z)-eicosatetraenoate
label_lc: 1-o-methyl-20-hydroxy-(5z,8z,11z,14z)-eicosatetraenoate + o2 <=> 1-o-methyl-8-hydroperoxy-20-hydroxy-(5z,9e,11z,14z)-eicosatetraenoate