skeletal formula of swainsonine locoweed toxin molecule.

swainsonine formula chemical molecular atomic alkaloid alphamannosidase alycoside anticancer astragalus atoms cancer carbon chemistry chemotherapy composition compound crazyweed disease drawing flat gogli hydrolase icon immunomodular line livestock loco locoism locoismo locoweed milkvetch molecule oxytropis pea phytotoxin plant poisonous skeletal struck structure swainsona toxicosis toxin tumor