You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [3-(1-ethylcyclohexyl)oxy-3-oxopropyl] 2-(2,2-dimethylcyclopropyl)propanoate;ruthenium(1+) by IUPAC nomenclature, provide its molecular formula.
user
C19H31O4Ru
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