You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule ethyl 7-(2,4-dimethoxyphenyl)-5-[(5-phenyl-1,3,4-thiadiazol-2-yl)sulfanylmethyl]-4,7-dihydrotetrazolo[1,5-a]pyrimidine-6-carboxylate .
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C24H23N7O4S2
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