The molecule is a leptomycin having all-trans double bonds and a seventh methyl substituent at position 17. It has a role as an antifungal agent and a bacterial metabolite. It is a leptomycin and a hydroxy polyunsaturated fatty acid. It derives from a tetracosanoic acid.
(2E,5S,6R,7S,9R,10E,12E,15R,16E,18E)-6-hydroxy-3,5,7,9,11,15,17-heptamethyl-19-[(2S,3S)-3-methyl-6-oxo-2,3-dihydropyran-2-yl]-8-oxononadeca-2,10,12,16,18-pentaenoic acid