You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named (2S,3R)-3-hydroxy-3-methoxycarbonyl-5-oxooxolane-2-carboxylic acid;(2S,3R)-3-hydroxy-5-oxooxolane-2,3-dicarboxylic acid by IUPAC nomenclature, provide its molecular formula.
user
C13H14O14
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