Synonyms: Butanediamide,N1-(16,21-diamino-21-imino-15-oxo-6,10,14,20-tetraazaheneicos-1-yl)-2-[[(2,4-dihydroxyphenyl)acetyl]amino]-,[S-(R*,R*)]-; Butanediamide,N1-[(16S)-16,21-diamino-21-imino-15-oxo-6,10,14,20-tetraazaheneicos-1-yl]-2-[[(2,4-dihydroxyphenyl)acetyl]amino]-,(2S)- (9CI); Argiopin; Argiopine; Argiotoxin 636