D-octopineArginine, N2-(1-carboxyethyl)-, L-D-(+)-OctopineD-OctopineD-octopineL-Arginine, N2-(1-carboxyethyl)-, (R)-L-Arginine, N2-[(1R)-1-carboxyethyl]-N(2)-(D-1-carboxyethyl)-L-arginineN2-(1-Carboxyethyl)-L-arginineN2-(D-1-Carboxyethyl)-L-arginineOctopine