1H-2-benzopyran-1-one, 8-hydroxy-4-(hydroxyacetyl)- 4-glycoloyl-8-hydroxy-1H-isochromen-1-one InChI=1/C11H8O5/c12-4-9(14)7-5-16-11(15)10-6(7)2-1-3-8(10)13/h1-3,5,12-13H,4H