You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[[6-[2-cyano-4-[(3E,5Z)-hepta-1,3,5-trien-4-yl]-N-pyridin-2-ylanilino]pyren-1-yl]-[(1Z,3Z)-1-(methylideneamino)penta-1,3-dienyl]amino]-5-phenylbenzonitrile is the IUPAC name of a molecule. Please give its molecular formula.
user
C54H40N6
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