H-Arg-D-Ala-OH

2-piperazinepropanamide,3,6-dioxo-, (s)- (9ci) ; c(gly-gln) ; cyclo(glycyl-l-glutaminyl) ; 2-piperazinepropanamide,3,6-dioxo-, (2s)- ; (s)-3,6-dioxo-2-piperazinepropanamide ; cyclo(gly-l-gln) ; 3-[(2s)-3,6-dioxopiperazin-2-yl]propanamide ; 2-piperazinepropanamide,3,6-dioxo-,(s)-(9ci) ; cyclo(-gly-gln) ; (2s)-hexahydro-3,6-dioxo-pyrazinepropanamide ; (s)-3-(3,6-dioxopiperazin-2-yl)propanamide