11H-dibenzo[b,e][1,4]dioxepin-11-one, 2,4,7,9-tetrachloro-3-hydroxy-8-methoxy-1,6-dimethyl- 2,4,7,9-tetrachloro-3-hydroxy-8-methoxy-1,6-dimethyl-11H-dibenzo[b,e][1,4]dioxepin-11-one 527-93-5 InChI=1/C16H10Cl4O5/c1-4-6-13(9(19)11(21)7(4)17)24-12-5(2)8(18)14(23-3)10(20)15(12)25-16(6)22/h21H,1-3H