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organic compounds
The structure determination of the title compound, C12H18NO2+.C8H7O3-, has allowed the absolute configuration of the cation to be established. The base, demethylated, is 5,6-dihydroxy-1,2,3,4-tetrahydro-2-naphthalenamine, or 5,6-ADTN, and is responsible for the dopaminergic activity; this work shows that it has the same spatial arrangement as (6aR)-apomorphine.