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What is the molecular formula of the compound with this IUPAC name (6S,7R)-7-[[2-(2-formamido-1,3-thiazol-4-yl)-2-methoxyiminoacetyl]amino]-7-methyl-3-(1-methylpiperazin-1-ium-1-yl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid ?
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C20H26N7O6S2+
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