Figure 3From: Pesticidal and pest repellency activities of a plant derived triterpenoid 2α,3β,21β,23,28-penta hydroxyl 12-oleanene against Tribolium castaneumStructure of compound 1 (2α,3β,21β,23,28-penta hydroxyl 12-oleanene). The compound has five functional (hydroxyl) groups at 2, 3, 21, 23 and 28 positions, and one unsaturation (double bond) at 12 position.Back to article page