B 2085 (OTTO) 2-Bromobenzoic acid, 98% Cas 88-65-3 - used in the synthesis of new zinc(II) − 2-bromobenzoate complex compounds. B 2085 (OTTO) 2-Bromobenzoic acid, 98% Cas 88-65-3 - used as the starting reagent in the synthesis of hemilabile benzimidazolyl phosphine ligands.