Trichodesmine

Chemical Name: (3R,4R,5R,8a1R,13aR)-4,5-dihydroxy-3-isopropyl-4,5-dimethyl-4,5,8,8a1,10,12,13,13a-octahydro-2H-[1,6]dioxacycloundecino[2,3,4-gh]pyrrolizine-2,6(3H)-dione

Synonym: Levothyroxine beta-Hydroxy T4 Impurity