Ultrasal-5-01.jpg (Ultrasal 5 01)
COOH stands for carboxyl group, which is a functional group composed of a carbon atom double bonded to an oxygen atom and single bonded to a hydroxyl group (-OH). This group is commonly found in organic molecules and plays a significant role in several biochemical processes. For instance, it acts as an acidic group that can easily lose a proton and form a negatively charged carboxylate ion.*