25687-34-7 Boccck-8 (ns) Desulfated benzyloxycarbonyl cholecystokinin (26-33) L-Phenylalaninamide, N-((1,1-dimethylethoxy)carbonyl)-L-alpha-aspartyl-L-tyrosyl-L-methionylglycyl-L-tryptophyl-L-methionyl-L-alpha-aspartyl-