"mono-n-butyl phthalate" . . "monobutyl phthalate" . "2-(Butoxycarbonyl)benzoic acid" . . "Phthalic acid, monobutyl ester" . "1,2-Benzenedicarboxylic acid, monobutyl ester" . "Butyl hydrogenphthalate" . "Mono-n-butyl phthalate" . . "''n''-butyl phthalate" . . "Monobutyl phthalate" . . . "Monobutyl phthalate" . . "2-(Butoxycarbonyl)benzoic acid" .