label: (2S)-1,2-O-6,9,12,15-dioctadecatetraenoyl-3-O-(alpha-D-galactopyranosyl-(1''''-6''')-O-beta-D-galactopyranosyl)-glycerol
label_lc: (2s)-1,2-o-6,9,12,15-dioctadecatetraenoyl-3-o-(alpha-d-galactopyranosyl-(1''''-6''')-o-beta-d-galactopyranosyl)-glycerol