CAS No.: 56-89-3 Synonyms: L-Cystine; ( R , R )-3,3′-Dithiobis(2-aminopropionicacid) Formula: C₆H₁₂N₂O₄S₂ Formula Weight: 240.3 Linear Formula: [-SCH₂CH(NH₂)CO₂H]₂ MDL No.: …