109796-64-7 L-Threonine, L-phenylalanyl-L-leucyl-L-tryptophyl-L-lysyl-L-alpha-aspartyl-L-leucyl-L-glutaminyl-L-arginyl-L-valyl-L-arginylglycyl-L-alpha-aspartyl-L-leucylglycyl-L-alanyl-L-alanyl-L-leucyl-L-alpha-aspartyl-L-seryl-L-tryptophyl-L-isoleucyl- Prepro-thyrotropin releasing hormone (53-74) Prepro-trh (53-74)