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system
Name the molecular formula for the molecule established as (6R,7R)-3-(acetyloxymethyl)-7-[(5-amino-5-carboxypentanoyl)amino]-8-oxo-7-phenylmethoxy-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid using the IUPAC nomenclature.
user
C23H27N3O9S
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