Lasalocid
Benzoic acid, 6-(7-(5-ethyl-5-(5-ethyltetrahydro-5-hydroxy-6-methyl-2H-pyran-2-yl)tetrahydro-3-methyl-2-furanyl)-4-hydroxy-3,5-dimethyl-6-oxononyl)-2-hydroxy-3-methyl-, (2R-(2alpha(2S*(3R*,4S*,5S*,7R*),3S*,5S*),5alpha,6beta))-