Refers to the position of a group on a benzene ring, where the group is located at the adjacent position to the functional group.
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N-(4-cyanophenyl)-2-pyridinecarboxamide
N-(4-methoxy-2-nitrophenyl)pyridin-2-amine
10H-Phenoxazine-4-carboxylic acid, methyl ester
N-(2-bromophenyl)-N-methylnitrous amide
3-bromo-2-fluoro-6-hydroxybenzaldehyde
