You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 7-(2-chlorophenyl)-2-methyl-4,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-5-carboxylic acid .
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C13H11ClN4O2
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