Bellidin is a member of the class of xanthones that is xanthone which is substituted by hydroxy groups at positions 1, 3, 5, and 8. A natural product found particularly in Iris nigricans and Gentiana campestris. It has a role as an antioxidant, a metabolite, a mutagen, an EC 3.1.1.7 (acetylcholinesterase) inhibitor and a radical scavenger. It is a tetrol and a member of xanthones. It is functionally related to a xanthone.