L-Cystine dihydrochloride
Chemical Structure
- L‑cystine is formed by oxidative dimerization of two L‑cysteine molecules via a disulfide bond (‑S‑S‑).
- The dihydrochloride salt is formed by protonating the two amino groups with HCl, which dramatically improves water solubility.
Distinction from Related Compounds
- L‑Cystine dihydrochloride：Dimer, disulfide‑linked, high solubility, used for stable cysteine supply.
- L‑Cysteine hydrochloride：Monomer, reduced form, more reactive, used as a reducing agent.
L‑Cystine dihydrochloride is a stable, highly soluble form of L‑cystine that provides a reliable source of cysteine for biological systems. Its unique properties make it indispensable in cell culture, bioproduction, and research.
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