You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [5-[5-[(E)-3-(aminomethylamino)-3-oxoprop-1-enyl]-2,4-dioxopyrimidin-1-yl]-2-[[ethoxy(oxido)phosphoryl]oxymethyl]oxolan-3-yl] hydrogen phosphate by IUPAC nomenclature, provide its molecular formula.
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C15H22N4O12P2-2
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