38916-34-6 51110-01-1 CCRIS 3629 EINECS 254-186-5 Growth hormone-release inhibiting factor: L-alanylglycyl-L-cysteinyl-L-lysyl-L-asparaginyl-L-phenylalanyl-L-phenylalanyl-L-tryptophyl-L-lysyl-L-threonyl-L-phenylalanyl-L-threonyl-L-seryl-L-cysteine cyclic (3-