(5Z,8Z,11Z,14Z)-eicosatetraenoate + O2 => 9R-hydroperoxy(5Z,7E,11Z,14Z)-eicosatetraenoate
(5z,8z,11z,14z)-eicosatetraenoate + o2 => 9r-hydroperoxy(5z,7e,11z,14z)-eicosatetraenoate
(5Z,8Z,11Z,14Z)-eicosatetraenoate + O2 => 9R-hydroperoxy(5Z,7E,11Z,14Z)-eicosatetraenoate
(5z,8z,11z,14z)-eicosatetraenoate + o2 => 9r-hydroperoxy(5z,7e,11z,14z)-eicosatetraenoate