111944-83-3 Argiopinin 3 Argiopinin III Argiopinine 3 Argiotoxin 659 Butanediamide, N1-(16,21-diamino-21-imino-15-oxo-6,10,14,20-tetraazaheneicos-1-yl)-2-(((4-hydroxy-1H-indol-3-yl)acetyl)amino)-, (S-(R*,R*))-