27220-86-6 Boc-cck-8 Caerulein, 1-de(5-oxo-L-proline)-2-de-L-glutamine-3-(N-((1,1-dimethylethoxy)carbonyl)-L-aspartic acid)-5-L-methionine- t-Butyloxycarbonylsincalide tert-Butoxycarbonylcholecystokinin-8 tert-Butyloxycarbonylcholecystokinin-8