Synonyms: [(2R)-6β-[1-[[(5-O-β-D-Galactofuranosyl-β-D-galactofuranosyl)oxy]methyl]ethenyl]-1,2,4aβ,5,6,7,8,8a-octahydro-4,8aα-dimethylnaphthalen-2β-yl]5-O-β-D-galactofuranosyl-β-D-galactofuranoside;Helminthosporoside A-Δ2,3-isomer;Helminthosporoside C;HS toxin C