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What is the molecular formula of the molecule identified by N-[2-(4-bromophenyl)-2-oxoethyl]-3,4-dichloro-N-[(1S,2R,6S,7S,8R,10R)-3,5-dioxo-4-azatetracyclo[5.3.2.02,6.08,10]dodec-11-en-4-yl]benzamide ?
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C26H19BrCl2N2O4
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