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56-89-3 L-Cystine | 
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| Chemical Name | L-Cystine | 
| Synonyms | 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;(2R,2'S)-3,3'-disulfanediylbis(2-ammoniopropanoate);Dicysteine | 
| Molecular Formula | C3H7NO2S3 | 
| Molecular Weight | 185.28818 | 
| InChl | InChI=1/C3H6NO2S3/c5-3(6)2(4-7)1-9-8/h2H,1,4H2,(H,5,6) | 
| CAS Registry Number | 56-89-3;24645-67-8 | 
| EINECS | 200-296-3 | 
| Molecular Structure | ![]()  | 
			    
| Melting Point | 260-261℃ | 
| Water Solubility | 0.112 g/L (25℃) | 
| Safety Description | S24/25:; | 
			    
| MSDS | |