You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [(1S,12R,13R,15S,16R,18S,19R,20R,22R)-8-amino-13,14,19,22-tetrahydroxy-20-(hydroxymethyl)-7-methyl-6-oxo-2,17,21,23-tetraoxa-4,7,9,11-tetrazapentacyclo[16.3.1.112,15.03,11.05,10]tricosa-3,5(10),8-trien-16-yl] phosphono hydrogen phosphate by IUPAC nomenclature, provide its molecular formula.
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C17H25N5O17P2
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