128549-96-2 1H-Indole-3-acetamide, N-(20-amino-4-hydroxy-4,8,12,17-tetraazaeicos-1-yl)- AG 489 AG-489 Agatoxin 489 N-(20-Amino-4-hydroxy-4,8,12,17-tetraazaeicos-1-yl)-1H-indole-3-acetamide