2-Benzimidazolepropionic acid is a 2-(4-thiazolyl)benzimidazole analog. 2-Benzimidazolepropionic acid is a 2-substituted benzimidazole ligand and its dissociation constant has been evaluated. 2-Benzimidazolepropionic acid is reported to possess active antimarial activity.;2-Benzimidazolepropionic acid is a 2-(4-thiazolyl)benzimidazole analog. 2-Benzimidazolepropionic acid is a 2-substituted benzimidazole ligand and its dissociation constant has been evaluated. 2-Benzimidazolepropionic acid is reported to possess active antimarial activity.