Synonyms: beta,beta-dithiodialanine;bis(beta-amino-beta-carboxyethyl) disulfide;3,3-Dithiobis-L-alanine;L-(-)-Cystine;beta,beta-diamino-beta,beta-dicarboxydiethyl disulfide;L-Alanine, 3,3-dithiobis-;Propanoic acid, 3,3-dithiobis(2-amino-, (R-(R*,R*))-;Cystine, L-;Bis(.beta.-amino-.beta.-carboxyethyl) disulfide;Propanoic acid, 3, 3-dithiobis[2-amino-, [R-(R*,R*)]-;CYSTINE, (L);beta,beta-Dithioalanine, L-;L-Cysteine disulfide;Gelucystine;(-)-Cystine;Alanine, 3, 3-dithiobis-;(2R)-2-amino-3-[(2R)-2-amino-2-carboxy-ethyl]disulfanyl-propanoic acid;(R-(R*,R*))-3,3-Dithiobis(2-aminopropanoic acid);Cystine, L- (8CI);Cystine (VAN);Cystine (L)-;L-Cystine (9CI);(R,R)-3,3-dithiobis(2-aminopropanoic acid);3,3-Dithiobis(2-aminopropanoic acid), (R-(R*,R*))-;L(-)-3,3'-Dithiobis(2-aminopropanoic acid);beta,beta-Diamino-beta,beta-dicarboxydiethyldisulfide;L-alpha-Diamino-beta-dithiolactic acid;alpha-Diamino-beta-dithiolactic acid;L-Dicysteine;(2R,2R)-3,3-disulfanediylbis(2-aminopropanoic acid);L(-)-3,3'-Dithiobis;L--Cystine;(H-Cys-OH)2;