N-(9Z-octadecenoyl)-sphing-4-enine-1-phosphate(in) => N-(9Z-octadecenoyl)-sphing-4-enine-1-phosphate(out)
n-(9z-octadecenoyl)-sphing-4-enine-1-phosphate(in) => n-(9z-octadecenoyl)-sphing-4-enine-1-phosphate(out)