preferred_name: eicosanoate + sphing-4-enine => N-eicosanoyl-sphing-4-enine + H2O
preferred_name_lc: eicosanoate + sphing-4-enine => n-eicosanoyl-sphing-4-enine + h2o
label: eicosanoate + sphing-4-enine => N-eicosanoyl-sphing-4-enine + H2O
label_lc: eicosanoate + sphing-4-enine => n-eicosanoyl-sphing-4-enine + h2o