Ergosterol peroxide

Ergosterol peroxide (5α,8α-epidioxy-22"E"-ergosta-6,22-dien-3β-ol) is a steroid derivative. It has been isolated from a variety of fungi, yeast, lichens and sponges, and has been reported to exhibit immunosuppressive, anti-inflammatory, antiviral, trypanocidal and antitumor activities "in vitro".