Tristin is a bibenzyl derivatives. Tristin is a nature product isolated from Dendrobii Herba (stems of Dendrobium spp.). Tristin has antioxidative activity[1].
References
[1] ONO M, et al. Antioxidative constituents from Dendrobii Herba (stems of Dendrobium spp.). Food Science and Technology International, Tokyo, 1995, 1(2): 115-120.