Cystine Disodium Salt
Cystine Disodium Salt, systematically named disodium (R,R)-3,3'-dithiobis(2-aminopropanoate), is an ionic derivative of L-cystine formed by neutralizing the two carboxyl groups of L-cystine with sodium hydroxide. Its chemical properties are determined by three core structural features: the ionic carboxylate groups, the primary amino groups, and the intramolecular disulfide bond (-S-S-). These functional groups endow the compound with distinct reactivity in acid-base reactions, redox reactions, and peptide synthesis, making it widely applicable in pharmaceuticals and nutritional science.
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