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What is the molecular formula of the molecule 1',8'-dichloro-2',7'-dihydroxy-N-(6-hydroxyhexyl)-9',9'-dimethyl-1-oxospiro[2-benzofuran-3,10'-anthracene]-5-carboxamide;[1',8'-dichloro-6-(6-hydroxyhexylcarbamoyl)-7',9',9'-trimethyl-3-oxospiro[2-benzofuran-1,10'-anthracene]-2'-yl] 2,2-dimethylpropanoate ?
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C66H68Cl4N2O12
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