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What is the molecular formula of the molecule ethyl 2-[[5-(2-ethoxyphenyl)-4-sulfanylidene-3-thia-5,7,9,16-tetrazatetracyclo[7.7.0.02,6.010,15]hexadeca-1(16),2(6),7,10,12,14-hexaen-8-yl]sulfanyl]acetate ?
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C23H20N4O3S3
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