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system
Provide the molecular formula for the IUPAC named substance (6S,7R)-7-[[(2Z)-2-(5-amino-1,2,4-thiadiazol-3-yl)-2-methoxyiminoacetyl]amino]-3-[(1-methyl-5H-imidazo[1,2-b]pyridazin-6-yl)sulfanylmethyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid .
user
C20H21N9O5S3
assistant