White solid. PROTECT FROM LIGHT. PACKAGED UNDER INERT GAS. A cell-permeable sesquiterpene lactone with anti-inflammatory, antisecretory, and spasmolytic properties. Inhibits the expression of COX-2 and proinflammatory cytokines (TNF-a and IL-1) in LPS-stimulated macrophages. Also inhibits NF-kB and activation of MAP kinase. Purity: ≥97% by TLC. RTECS LY4220000, CAS 20554-84-1.

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R: 20/21/22-40-42/43; S: 22-36