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system
What is the molecular formula of the molecule (6R,7R)-7-amino-8-oxo-3-[(E)-3-pyridin-1-ium-1-ylprop-1-enyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carbonyl chloride ?
user
C15H15ClN3O2S+
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