You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named propyl (2S)-2-[[[(2R,3S,4R,5R)-4-azido-5-(2,4-dioxopyrimidin-1-yl)-3-hydroxy-4-methyloxolan-2-yl]methoxy-phenoxyphosphoryl]amino]propanoate by IUPAC nomenclature, provide its molecular formula.
user
C22H29N6O9P
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