L-Asparagine,L-methionyl-L-methionyl-L-arginyl-L-a-aspartyl-L-serylglycyl-L-cysteinyl-L-phenylalanylglycyl-L-arginyl-L-arginyl-L-isoleucyl-L-a-aspartyl-L-arginyl-L-isoleucylglycyl-L-seryl-L-leucyl-L-serylglycyl-L-methionylglycyl-L-cysteinyl-L-asparaginylglycyl-L-seryl-L-arginyl-L-lysyl-,cyclic (7®23)-disulfide