含多種鞣質成分:地榆素(sanguiin)H-1、H-2、H-3,H-4、H-5、H-6、H-7、H-8、H-9、H-10、H-11,1,2,6-三沒食子醯-β-D-葡萄糖(1,2,6-trigalloyl-β-D-glucose)、1,2,3,6-四沒食子醯-β-D-葡萄糖(1,2,3,6-tetragalloyl-β-D-glucose),2,3,4,6-四沒食子醯-D-葡萄糖(2,3,4,6-tetragalloyl-D-glucose),1,2,3,4,6-五沒食子醯-β-D-葡萄糖(1,2,3,4,6-Pentagalloyl-β-D- glucose),6-O-沒食子醯甲基-β-D-吡喃葡萄糖甙(methyl-6-O-galloyl-β-D-glucopyranoside),6-O-雙沒食子醯甲基-β-D-吡喃葡萄糖甙(methyl-6-O-digalloyl-β-D-glucoPyranoside),4,6-O-雙沒食子醯甲基-β-D-吡喃葡萄糖甙(methyl-4,6-di-O-galloyl-β-D-glucopyranoside),2,3,6-O-三沒食子醯甲基-β-D-吡喃葡萄糖甙(methyl-2,3,4,6-O-三沒食子醯甲基-β-D-吡喃葡萄糖甙(methyl-3,4,6-tri-O-galloyl-β-D-glucopyranoside),2,3,4,6-O-四沒食子醯甲基-β-D-吡喃葡萄糖甙(methyl-2,3,4,6-tetra-O-galloyl-β-D-glucopyranoside),沒食子酸-3-O-β-D-(6’-O-沒食子醯)-吡喃葡萄糖甙[gallic acid-3-O-β-D-(6’-O-gal loyl)-glucopyranoside],3,4,3’-三-O-甲基並沒食子酸(3,4,3’-tri-O-methylellagic acid),地偷酸雙內酯(sanguisorbic acid dilactone)。還含有2種沒食子醯金縷梅糖衍生物:5,2’-雙-O-沒食子醯金縷梅糖(5,2’-di-O-galloylhamamelose),2’,3,5-三-O-沒食子醯-D-呋喃金縷梅糖。