137442-15-0 Cholecytokinin (26-33), N-methyl-nle(28,31)-4-nitro-phe amide(33)- Cholecytokinin (26-33), N-methylnorleucyl(28-31)-4-nitrophenylalaninamide(33)- L-Phenylalaninamide, L-alpha-aspartyl-L-tyrosyl-N-methyl-L-norleucylglycyl-L-tryptophyl-N-methyl-L-norleucyl-L-alpha-aspartyl-4-nitro- N-Methyl-28,31-nle-33-4-nitro-phenh2-cholecystokinin (26-33) Snf 8906 Snf-8906