You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [(E)-[3-cyclohexyl-1-[9,9-dibutyl-7-(naphthalene-1-carbonyl)fluoren-2-yl]propylidene]amino] acetate;[(E)-[3-cyclohexyl-1-(9,9-dibutyl-7-nitrofluoren-2-yl)propylidene]amino] acetate;[(E)-[3-cyclohexyl-1-[9,9-dibutyl-7-(2,4,6-trimethylbenzoyl)fluoren-2-yl]propylidene]amino] acetate;[(Z)-[1-(2-methylphenyl)-2-[4-(4-nitrophenyl)sulfanylphenyl]-2-oxoethylidene]amino] acetate by IUPAC nomenclature, provide its molecular formula.
user
C140H162N6O15S
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