71974-09-9 D-Lysine, 6-carboxy-N6-D-gamma-glutamyl-, erythro- GGMDA Heptanedioic acid, 2-amino-6-((4-amino-4-carboxy-1-oxobutyl)amino)-, (2R-(2R*,6S*(R*)))- N(2)-(gamma-D-Glutamyl)-meso-2,2'-diaminopimelic acid