55207-84-6 Hgh 1-15 Human growth hormone 1-15 L-Leucine, L-phenylalanyl-L-prolyl-L-threonyl-L-isoleucyl-L-prolyl-L-leucyl-L-seryl-L-arginyl-L-leucyl-L-phenylalanyl-L-alpha-aspartyl-L-asparaginyl-L-alanyl-L-methionyl-