tetra-O-methyl nordihydroguaiaretic acid

(TEH-truh-OH-MEH-thul NOR-dy-HY-droh-GWY-uh-reh-tik A-sid) A substance being studied in the treatment of cancer. It blocks proteins needed for cancer growth. It is a type of transcriptional inhibitor. Also called EM-1421 and tetra-O-methyl NDGA.