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system
Provide the molecular formula for the IUPAC named substance [2-[[(6S)-3-ethoxycarbonyl-6-methyl-4,5,6,7-tetrahydro-1-benzothiophen-2-yl]amino]-2-oxoethyl]-methyl-(1-methylpiperidin-1-ium-4-yl)azanium .
user
C21H35N3O3S+2
assistant