Fenpropimorph

Fenpropimorph is a fungicide that inhibits the sterol pathway. Fenpropimorph inhibits δ8-δ7-sterol isomerase in yeast at low concentrations, with δ14-sterol reductase being blocked at higher levels, preventing the biosynthesis of ergosterol. Fenpropimorph also inhibits sterol synthesis in certain plants and mammalian cells[1][2][3].