4H-1-benzopyran-4-one, 8-chloro-2,3-dihydro-5,7-dimethoxy-2-(4-methoxyphenyl)- 8-chloro-5,7-dimethoxy-2-(4-methoxyphenyl)-2,3-dihydro-4H-chromen-4-one InChI=1/C18H17ClO5/c1-21-11-6-4-10(5-7-11)13-8-12(20)16-14(22-2)9-15(23-3)17(19)18(16)24-13/h4-7,9,13H,8H2,1-3H