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system
Name the molecular formula for the molecule established as [(2R,3R)-1-[4-(1,3-benzodioxol-5-ylmethyl)piperazin-4-ium-1-yl]-3-methyl-1-oxopentan-2-yl]azanium using the IUPAC nomenclature.
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C18H29N3O3+2
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