You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 5-[(diaminomethylideneamino)methyl]-6-[9,12-dihydroxy-2,6,6,15,19-pentamethyl-5,17-dioxo-8-(2-phenylethenyl)-14-pentacyclo[10.5.2.02,7.09,18.015,19]nonadeca-1(18),10-dienyl]-4-hydroxy-2-methylhept-2-enoic acid by IUPAC nomenclature, provide its molecular formula.
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C42H55N3O7
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