Refers to a chemical compound in which a substituent is located on the ortho position of a benzene ring, usually at the 1,2 position.
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2-{5-tert-Butyl-2-[4-tert-butyl-2-hydroxymethyl-6-(1-hydroxy-1-methyl-ethyl)-benzenesulfonyl]-3-hydroxymethyl-phenyl}-propan-2-ol
Phenol, 2,2',2''-[nitrilotris(methylene)]tris[6-methyl-
(5-bromo-2-chloro-4-methoxyphenyl)methanol
