Synonyms:
α-methyl-3-(2-methylpropyl)benzeneacetic acid, α-(3-isobutylphenyl)propionic acid ; ibuprofen impurity-a (ep) ; 2-(3-isobutylphenyl)propanoic acid ; m-isobutyl ibuprofen ; (2rs)-2-[3-(2-methylpropyl)phenyl] propanoic acid ; ibuprofen impurity a ; 2-(3-isobutylphenyl)propionic acid ; α-methyl-3-(2-methylpropyl)phenylacetic acid