99291-20-0 L-Methionine, N-(1-(N-(N-(N-(N-(N-(1-L-valyl-L-prolyl)-L-valyl)-L-alpha-glutamyl)-L-alanyl)-L-valyl)-L-alpha-aspartyl)-L-prolyl)- V-9-M V-9-M Cholecystokinin nonapeptide Val-pro-val-glu-ala-val-asp-pro-met Valyl-prolyl-valyl-glutamyl-alanyl-valyl-aspartyl-prolyl-methionine