174024-80-7 Ac-Arg-pro-asp-NH-isobutyl Iri 695 Iri-695 L-alpha-Asparagine, N2-(1-(N2-acetyl-L-arginyl)-L-prolyl)-N-(2-methylpropyl)-, 2-hydroxy-1,2,3-propanetricarboxylate N-Acetyl-L-arginyl-L-prolyl-L-aspartyl-NH-isobutyl citrate