159650-20-1

L-Tryptophan,L-cysteinyl-L-seryl-L-cysteinyl-L-lysyl-L-a-aspartyl-L-methionyl-L-seryl-L-a-aspartyl-L-lysyl-L-a-glutamyl-L-cysteinyl-L-leucyl-L-asparaginyl-L-phenylalanyl-L-cysteinyl-L-histidyl-L-glutaminyl-L-a-aspartyl-L-valyl-L-isoleucyl-,cyclic (1&reg