HS toxin B

Helminthosporoside B

Helminthosporoside A-Δ3,10-isomer

[2-[(2S,8aβ)-6β-[(5-O-β-D-Galactofuranosyl-β-D-galactofuranosyl)oxy]decahydro-4aα-methyl-8-methylenenaphthalen-2β-yl]-2-propenyl]5-O-β-D-galactofuranosyl-β-D-galactofuranoside