preferred_name: 1-octadecanoyl-2-(9Z-octadecenoyl)-sn-glycero-3-phosphocholine + N-(acetyl)-sphing-4-enine <=> 1-octadecanoyl-N-(acetyl)-sphing-4-enine + 2-(9Z-octadecenoyl)-sn-glycero-3-phosphocholine
preferred_name_lc: 1-octadecanoyl-2-(9z-octadecenoyl)-sn-glycero-3-phosphocholine + n-(acetyl)-sphing-4-enine <=> 1-octadecanoyl-n-(acetyl)-sphing-4-enine + 2-(9z-octadecenoyl)-sn-glycero-3-phosphocholine
label: 1-octadecanoyl-2-(9Z-octadecenoyl)-sn-glycero-3-phosphocholine + N-(acetyl)-sphing-4-enine <=> 1-octadecanoyl-N-(acetyl)-sphing-4-enine + 2-(9Z-octadecenoyl)-sn-glycero-3-phosphocholine
label_lc: 1-octadecanoyl-2-(9z-octadecenoyl)-sn-glycero-3-phosphocholine + n-(acetyl)-sphing-4-enine <=> 1-octadecanoyl-n-(acetyl)-sphing-4-enine + 2-(9z-octadecenoyl)-sn-glycero-3-phosphocholine