Isozaluzanin C (Dehydrozaluzanin c-derivative) is an anti-inflammatory agent that can be isolated from Saussurea lappa and has immunomodulatory effects. Isozaluzanin C improves tissue damage (lung, kidney, and liver) and excessive inflammation in mice induced by LPS or CRKP infection. Isozaluzanin C can be used in the study of bacterial infections and sepsi.