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system
Name the molecular formula for the molecule established as (3R)-3-(4-methoxyphenyl)-1-(2-methylphenyl)-2,5,6,7-tetrahydroimidazo[2,1-b][1,3]thiazin-4-ium-3-ol using the IUPAC nomenclature.
user
C20H23N2O2S+
assistant