145996-18-5

L-Arginine,D-arginyl-L-arginyl-L-prolyl-trans-4-hydroxy-L-prolylglycyl-L-phenylalanyl-S-[1-[6-(3-mercapto-2,5-dioxo-1-pyrrolidinyl)hexyl]-2,5-dioxo-3-pyrrolidinyl]-L-cysteinyl-D-phenylalanyl-L-leucyl-,(7&reg