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L-Cystine dihydrochloride

L‑Cystine dihydrochloride is the dihydrochloride salt form of L‑cystine, a sulfur‑containing amino acid dimer. It is widely used in cell culture, biomanufacturing, and research due to its high solubility and stability compared to free L‑cystine.

Basic Information

  • CAS No.:30925‑07‑6
  • Molecular Formula:C₆H₁₂N₂O₄S₂·2HCl
  • Molecular Weight:313.22
  • Appearance:White to off‑white crystalline powder
  • Solubility:Highly soluble in dilute HCl (e.g., 50 mg/mL in 0.5 M HCl); poorly soluble in neutral water

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