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system
2-[6-[(Z)-[7-(diethylamino)-4-methylchromen-2-ylidene]methyl]-2-[(E)-[7-(diethylamino)-4-methylchromen-2-ylidene]methyl]pyran-4-ylidene]propanedinitrile;2-[2-[(Z)-[7-(diethylamino)-4-methylchromen-2-ylidene]methyl]-6-[(E)-(6-methyl-3-oxa-13-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(17),2(7),5,8-tetraen-4-ylidene)methyl]pyran-4-ylidene]propanedinitrile;2-[2-methyl-6-[(E)-(4-methyl-7-morpholin-4-ylchromen-2-ylidene)methyl]pyran-4-ylidene]propanedinitrile;2-[2-methyl-6-[(E)-[4-methyl-7-(N-phenylanilino)chromen-2-ylidene]methyl]pyran-4-ylidene]propanedinitrile;2-[2-methyl-6-[(E)-(4-methyl-7-pyrrolidin-1-ylchromen-2-ylidene)methyl]pyran-4-ylidene]propanedinitrile The above is the IUPAC name of a molecule. Write its molecular formula.
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C158H141N17O13
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