Synonyms: Cyclic(L-arginyl-L-arginyl-L-prolyl-L-prolylglycyl-L-phenylalanyl-L-seryl-L-prolyl-L-phenylalanyl);19H-Tripyrrolo[1,2-a:1',2'-d:1'',2''-p][1,4,7,10,13,16,19,22,25]nonaazacycloheptacosine,cyclic peptide deriv.; Bradykinin cyclic (9®12)-peptide; Cyclobradykinin