L-Cystine
Aliases L(-)-3,3-Dithiobis(2-aminopropanoic acid); L-Cystine, synthetically derived; (H-Cys-OH)2 (Disulfide bond); (H-Cys-OH)2; H-(Cys)_2-OH~(-)-3,3-Dithiobis(2-aminopropionic acid); 2-Amino-3-[(2-amino-2-carboxyethyl)dithio]propanoic acid; L-Cystine,food grade; Cystine 
CAS No. 56-89-3 Product ID HA132
Formula C6H12N2O4S2  Weight 240.30  
EINECS No. 200-296-3  MDL No.  
MSDS
Mass spectrum
1H NMR
L-Cystine