You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Can you give the molecular formula of the molecule 18-(2-carboxyethyl)-20-(carboxymethyl)-12-ethenyl-7-ethyl-3,13,17-trimethyl-17,18,21,22,23,24-hexahydroporphyrin-2-carboxylic acid ?
user
C33H36N4O6
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