12,13-dihydroxy-(9Z)-octadecenoate => 12,13-epoxy-(9Z)-octadecenoate + H2O
12,13-dihydroxy-(9z)-octadecenoate => 12,13-epoxy-(9z)-octadecenoate + h2o
12,13-dihydroxy-(9Z)-octadecenoate => 12,13-epoxy-(9Z)-octadecenoate + H2O
12,13-dihydroxy-(9z)-octadecenoate => 12,13-epoxy-(9z)-octadecenoate + h2o