Hastatoside is an iridoid monoterpenoid with formula C17H24O11 that is isolated from several plants including Verbena officinalis and exhibits a sleep-promoting effect. It has a role as a hepatoprotective agent and a plant metabolite. It is a beta-D-glucoside, a methyl ester, a cyclopentapyran, an iridoid monoterpenoid, an alpha,beta-unsaturated carboxylic ester, a monosaccharide derivative and a monoterpene glycoside. Hastatoside and verbenalin are major sleep-promoting components of V. officinalis. Hastatoside has anti-inflammatory activity.