"2-Bromobutyric acid" . "dl-2-Bromobutyric acid" . . . . . . . "2-Bromobutyric acid" . "\u03B1-Bromobutyricacid" . . "alpha-Bromobytyric acid" . . . . "2-Bromobutanoic acid" . . . . . "2-Bromobutyric acid" . . .