(<i>E</i>)-2,4,7-Trichloro-3-hydroxy-8-methoxy-1,9-dimethyl-6-(1-methyl-1-propenyl)-11<i>H</i>-dibenzo[<i>b</i>,<i>e</i>][1,4]dioxepin-11-one monohydrate (nidulin monohydrate)
Acta crystallographica. Section E