You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named S-[2-[[(2R,3S,5R)-5-(4-aminopyrrolo[2,3-b]pyridin-1-yl)-3,4-dihydroxy-4-methyloxolan-2-yl]methoxy-(dimethylamino)phosphoryl]oxyethyl] ethanethioate by IUPAC nomenclature, provide its molecular formula.
user
C19H29N4O7PS
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