Stenophyllanin A, a tannin, and other quinic acid gallates can be found in Q. salicina. The triterpene friedelin can also be isolated from the leaves of the tree.
↑Nonaka, Gen-Ichiro; Nishimura, Hiroaki; Nishioka, Itsuo (1985). "Tannins and related compounds. Part 26. Isolation and structures of stenophyllanins A, B, and C, novel tannins from Quercus stenophylla". Journal of the Chemical Society, Perkin Transactions 1: 163–172. doi:10.1039/P19850000163.