105483-63-4 Cck (26-33), N-alpha-hydroxysulfonyl-norleucyl(28,31)- Cck (26-33), ohso-nle(28,31)- Cholecystokinin (26-33), N-alpha-hydroxysulfonyl-nle(28,31)- Cholecystokinin (26-33), N-alpha-hydroxysulfonyl-norleucine(28,31)- Nalpha-Hydroxysulfonyl-28,31-nle-cholecystokinin (26-33)