Glycine,L-arginyl-L-arginyl-L-isoleucyl-L-arginyl-L-prolyl-L-arginyl-L-prolyl-L-prolyl-L-arginyl-L-leucyl-L-prolyl-L-arginyl-L-prolyl-L-arginyl-L-prolyl-L-arginyl-L-prolyl-L-leucyl-L-prolyl-L-phenylalanyl-L-prolyl-L-arginyl-L-prolyl-, 2-oxoethylester