130517-75-8 Ac-Trp-ile-ala-aib-ile-val-aib-leu-aib-pro-ome AcWIA Acetyl-tryptophyl-isoleucyl-alanyl-aminoisobutyryl-isoleucyl-valyl-aminoisobutyryl-leucyl-aminoisobutyryl-proline methyl ester L-Proline, 1-(N-(N-(N-(N-(N-(N-(N-(N-(N-acetyl-L-tryptophyl)-L-isoleucyl)-L-alanyl)-2-methylalanyl)-L-isoleucyl)-L-valyl)-2-methylalanyl)-L-leucyl)-2-methylalanyl)-, methyl ester