101559-44-8 BW 633C BW-633-C His-pro-phe-his-leu-(AA)-val-ile-phe-ome L-Phenylalanine, N-(N-(N-(3-((N-(N-(1-L-histidyl-L-prolyl)-L-phenylalanyl)-L-histidyl)amino)-2-hydroxy-5-methylhexyl)-L-valyl)-L-isoleucyl)-, methyl ester