trans-Tetrahydro-4-methylene-2-octyl-5-oxo-3-furancarboxylic Acid is a well-known fatty acid synthase (FAS) inhibitor. Studies show that trans-Tetrahydro-4-methylene-2-octyl-5-oxo-3-furancarboxylic Acid is a cell cycle arrest inducer in hepatocellular carcinoma (HCC) cell lines. It has also been shown to blocks resistin-induced increases in lipid accumulation by human macrophages.