Cystamine dihydrochloride（Cat No.:R044841）is a crystalline, water-soluble salt form of cystamine, a diamine compound featuring a disulfide bond. It serves as a versatile reagent in biochemical and pharmaceutical research, particularly in redox biology and gene delivery. Upon cellular uptake, cystamine is reduced to cysteamine, which exhibits antioxidant and cytoprotective properties. It is also used to modify biomolecules via thiol-disulfide exchange, enabling crosslinking in protein and nucleic acid chemistry. Additionally, cystamine dihydrochloride has been explored for therapeutic potential in neurodegenerative diseases due to its role in modulating oxidative stress and cellular repair pathways.