Celastrol. An Antioxidant, anti-inflammatory and immunosuppressive agent, Synonyms:-(9B,13A,14B,20A)-3-Hydroxy-9,13-dimethyl-2-oxo-24,25,26-trinoroleana-1(10),3,5,7-tetraen-29-oic acid, CAS Number:-34157-83-0, Molecular Formula:-C29HG8OG, Purity:-G98% by TLC, 25mg.