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system
Provide the molecular formula for the IUPAC named substance (6R)-3-[(7-amino-1-methyl-[1,2,4]triazolo[1,5-c]pyrimidin-1-ium-5-yl)sulfanylmethyl]-7-[[(2Z)-2-(5-amino-1,2,4-thiadiazol-3-yl)-2-ethoxyiminoacetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid .
user
C20H22N11O5S3+
assistant