Synonyms: Cyclic(3-phenyl-b-alanyl-a-aminobutyrylserylseryl-3,4-dichloroprolyl);Islanditoxin (6CI,7CI);Pyrrolo[2,1-c][1,4,7,10,13]pentaazacyclohexadecine-1,5,8,11,14(2H)-pentone,17,18-dichloro-7-ethyldodecahydro-10,13-bis(hydroxymethyl)-3-phenyl- (8CI);Pyrrolo[2,1-c][1,4,7,10,13]pentaazacyclohexadecine, cyclic peptide deriv.