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| English name： | L-Cystine |
| Alias： | 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 |
| CAS： | 56-89-3;24645-67-8 |
| EINECS： | 200-296-3 |
| Molecular formula： | C3H7NO2S3 |
| Molecular weight： | 185.28818 |
| InChI： | InChI=1/C3H7NO2S3/c5-3(6)2(4-7)1-9-8/h2H,1,4H2,(H,5,6) |
| Molecular structure： |  |
| Melting point： | 260-261℃ |
| Water solubility： | 0.112 g/L (25℃) |