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system
Name the molecular formula for the molecule established as tetrasodium;(2R,3R,4S)-4-hydroxy-2-[(3R,4R,5R,6R)-2-hydroxy-3-(1-oxidoethylideneamino)-6-(sulfonatooxymethyl)-5-sulfooxyoxan-4-yl]oxy-3-sulfonatooxy-3,4-dihydro-2H-pyran-6-carboxylate using the IUPAC nomenclature.
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C14H17NNa4O20S3
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