Parthenolide 10mg. A NF-+B activation inhibitor, CAS Number: 20554-84-1, Purity: G97% by TLC, Molecular Formula: C1GH2GOG, Synonyms: (1aR-[1aR,4E,7aS,-10aS,-10bR])-2,3-6,7,7a,8,10a,10b-octahydro-1a,5-dimethyl-8-methyleneoxireno[9,10]cyclo deca[1,2-b]furan-9(1aH)-one