CAS No 123337-89-3 , L-Phenylalanine,L-seryl-L-glutaminyl-L-a-aspartyl-L-seryl-L-alanyl-L-phenylalanyl-L-arginyl-L-isoleucyl-L-glutaminyl-L-a-glutamyl-L-arginyl-L-leucyl-L-arginyl-L-asparaginyl-L-seryl-L-lysyl-L-methionyl-L-alanyl-L-histidyl-L-seryl-L-seryl-L-seryl-L-cysteinyl-L-phenylalanylglycyl-L-glutaminyl-L-lysyl-L-isoleucyl-L-a-aspartyl-L-arginyl-L-isoleucylglycyl-L-alanyl-L-valyl-L-seryl-L-arginyl-L-leucylglycyl-L-cysteinyl-L-a-aspartylglycyl-L-leucyl-L-arginyl-L-leucyl-,cyclic (23®