3-Hydroxy-5-(hydroxymethyl)-2-methyl-4-pyridinecarboxaldehyde Hydrochloride; 2-Methyl-3-hydroxy-4-formyl-5-hydroxymethylpyridine Hydrochloride; 3-Hydroxy-5-(hydroxymethyl)-2-methyl-4-pyridinecarboxaldehyde Hydrochloride; 3-Hydroxy-5-hydroxymethyl-2-methylisonicotinaldehyde Hydrochloride

Pyridoxal hydrochloride interacts with cysteine of cathepsins and inhibits their activity. It elicits protective function in cornu Ammonis (CA) 1 neurons during ischemia.