Synonyms: MicrocystinLA, 1-(2,3-didehydroalanine)-5-L-arginine-; 1,4,7,10,14,17,21-Heptaazacyclopentacosane,cyclic peptide deriv.; 7-Desmethylmicrocystin LR; Cyanoginosin LA,1-(2,3-didehydroalanine)-5-L-arginine-; Desmethyl-7-microcystin-LR; MicrocystinB; [Dha7]microcystin LR