![5,9,10-trihydroxy-2,2-dimethyl-11-(3-methylbut-2-en-1-yl)-3,4-dihydro-2H,12H-pyrano[2,3-a]xanthen-12-one](/static/images/placeholder.svg)
5,9,10-trihydroxy-2,2-dimethyl-11-(3-methylbut-2-en-1-yl)-3,4-dihydro-2H,12H-pyrano[2,3-a]xanthen-12-one
5,9,10-trihydroxy-2,2-dimethyl-11-(3-methylbut-2-en-1-yl)-3,4-dihydro-2H,12H-pyrano[2,3-a]xanthen-12-one
5,9,10-trihydroxy-2,2-dimethyl-11-(3-methylbut-2-en-1-yl)-3,4-dihydro-2H,12H-pyrano[2,3-a]xanthen-12-one 分析对照品