The molecule is a 1-alkyl-2-acyl-3-(3-O-sulfo-beta-D-galactosyl)-sn-glycerol (seminolipid) in which the alkyl and acyl substituents at O-1 and O-2 respectively are pentyl and icosanoyl.
[(2R)-1-[(2R,3R,4S,5S,6R)-3,5-dihydroxy-6-(hydroxymethyl)-4-sulfooxyoxan-2-yl]oxy-3-pentoxypropan-2-yl] icosanoate