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What is the molecular formula of the molecule 3-[(4-acetamido-3-hydroxypyridin-1-ium-1-yl)methyl]-7-[[(2Z)-2-(2-amino-5-chloro-1,3-thiazol-4-yl)-2-[(1S)-1-carboxyethoxy]iminoacetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid ?
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C23H23ClN7O9S2+
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