The chemical L-Cystine has a designated molecular formula of C6H12N2O4S2 and a molecular weight of 240.292 g/mol. Synonyms may include: Cystine, 4-04-00-03155 (Beilstein Handbook Reference), AI3-09064, L-Alanine, 3,3'-dithiobis-, Alanine, 3,3'-dithiobis-, Alanine, 3,3'-dithiodi-, Bis(beta-amino-beta-carboxyethyl)disulfide, BRN 1728094, CCRIS 5822, Cysteine disulfide (ChemID).