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易溶于水及醇,呈碱性反应,在空气中易氧化成为二硫化物。游离碱极不稳定,一般制成盐酸盐[156-57-0]。;application: Cysteamine is an amino thiol drug mainly used in the treatment of cystinosis. It is an antioxidant with chemo-sensitizing and radioprotective properties.