4-(biotin-epsilon-(aminohexanoyl)oxymethyl)-3-nitrobenzoyl-glycyl-(propionyl)ornithinyl-epsilon-aminohexanoyl-cholecystokinin
4-(biotin-epsilon-(aminohexanoyl)oxymethyl)-3-nitrobenzoyl-glycyl-(propionyl)ornithinyl-epsilon-aminohexanoyl-cholecystokinin