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易溶于水及醇,呈堿性反應,在空氣中易氧化成為二硫化物。游離堿極不穩定,一般制成鹽酸鹽[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.