CAS No 255721-52-9 , L-Alanine, L-a-glutamyl-L-valyl-L-lysyl-L-tyrosyl-L-a-aspartyl-L-prolyl-L-cysteinyl-L-phenylalanylglycyl-L-histidyl-L-lysyl-L-isoleucyl-L-a-aspartyl-L-arginyl-L-isoleucyl-L-asparaginyl-L-histidyl-L-valyl-L-seryl-L-asparaginyl-L-leucylglycyl-L-cysteinyl-L-prolyl-L-seryl-L-leucyl-L-arginyl-L-a-aspartyl-L-prolyl-L-arginyl-L-prolyl-L-asparaginyl-L-alanyl-L-prolyl-L-seryl-L-threonyl-L-seryl-,cyclic (7®