cholecystokinin (25-33), Thr(28)-Nle(31)- (TYR(SO3H)27),THR28,NLE31)CHOLECYSTOKININ FRAGMENT 25-33 AMIDE cholecystokinin frag. 25-33 amide[Tyr(SO3H)27,Thr28,Nle31] (Thr28,Nle31)-CCK-12 (4-12) (sulfated), (Thr28,Nle31)-CCK-33 (25-33) (sulfated), (Thr28,Nle31)-CCK-39 (31-39) (sulfated), (Thr28,Nle31)-CCK-58 (50-58) (sulfated) L-Phenylalaninamide, L-arginyl-L-α-aspartyl-O-sulfo-L-tyrosyl-L-threonylglycyl-L-tryptophyl-L-norleucyl-L-α-aspartyl- Thr4,Nle7]CCK9 (Thr??,Nle??)-Cholecystokinin-33 (25-33) (sulfated)