(Admaadda(5)-mser(7))microsystin-LR 141634-77-7 Admaadda-MS-M-LR Cyanoginosin LA, 1-(N-methylserine)-5-L-arginine-6-((2S,4E,6E,8S,9S)-9-(acetyloxy)-4,5,6,7-tetradehydro-2,6,8-trimethyl-10-phenyl-L-3-aminodecanoic acid)-