1.0 2010-04-08 22:10:18 UTC 2025-11-18 23:38:42 UTC FDB012672 (±)-Cystine Flavouring ingredient. (±)-Cystine is found in many foods, some of which are green bell pepper, green zucchini, italian sweet red pepper, and red bell pepper. (+)-3,3'-DITHIO-bis-(2-AMINOPROPIONIC) (+/-)-3,3'-Dithiobis(2-aminopropionicacid) 3,3'-disulfanediylbis(2-aminopropanoic acid) 3,3'-Dithiobis (2-aminopropanoic acid) 3,3'-Dithiobis(2-aminopropanoic acid), dl- Beta,beta'-dithioalanine, DL- Cistina Cystein disulfide Cystine DL-form Cystine, 9CI, USAN; (±)-form Cystine, DL- DL-cystine Meso-cystine Propanoic acid, 3,3'-dithiobis[2-amino-, [R-(R*,R*)]- Zystin C6H12N2O4S2 240.3 240.023848262 2-amino-3-[(2-amino-2-carboxyethyl)disulfanyl]propanoic acid cystine 923-32-0 NC(CSSCC(N)C(O)=O)C(O)=O InChI=1S/C6H12N2O4S2/c7-3(5(9)10)1-13-14-2-4(8)6(11)12/h3-4H,1-2,7-8H2,(H,9,10)(H,11,12) LEVWYRKDKASIDU-UHFFFAOYSA-N belongs to the class of organic compounds known as cysteine and derivatives. Cysteine and derivatives are compounds containing cysteine or a derivative thereof resulting from reaction of cysteine at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom. Cysteine and derivatives Organic compounds Organic acids and derivatives Carboxylic acids and derivatives Amino acids, peptides, and analogues Aliphatic acyclic compounds Alpha amino acids Amino acids Carbonyl compounds Carboxylic acids Dialkyldisulfides Dicarboxylic acids and derivatives Hydrocarbon derivatives Monoalkylamines Organic oxides Organopnictogen compounds Sulfenyl compounds Aliphatic acyclic compound Alpha-amino acid Amine Amino acid Carbonyl group Carboxylic acid Cysteine or derivatives Dialkyldisulfide Dicarboxylic acid or derivatives Hydrocarbon derivative Organic disulfide Organic nitrogen compound Organic oxide Organic oxygen compound Organonitrogen compound Organooxygen compound Organopnictogen compound Organosulfur compound Primary aliphatic amine Primary amine Sulfenyl compound Other amino acids cysteine derivative organic disulfide sulfur-containing amino acid logp -3.16 ALOGPS logs -1.16 ALOGPS solubility 1.68e+01 g/l ALOGPS melting_point Mp 260° logp -5.9 ChemAxon pka_strongest_acidic 1.56 ChemAxon pka_strongest_basic 9.34 ChemAxon iupac 2-amino-3-[(2-amino-2-carboxyethyl)disulfanyl]propanoic acid ChemAxon average_mass 240.3 ChemAxon mono_mass 240.023848262 ChemAxon smiles NC(CSSCC(N)C(O)=O)C(O)=O ChemAxon formula C6H12N2O4S2 ChemAxon inchi InChI=1S/C6H12N2O4S2/c7-3(5(9)10)1-13-14-2-4(8)6(11)12/h3-4H,1-2,7-8H2,(H,9,10)(H,11,12) ChemAxon inchikey LEVWYRKDKASIDU-UHFFFAOYSA-N ChemAxon polar_surface_area 126.64 ChemAxon refractivity 54.87 ChemAxon polarizability 22.78 ChemAxon rotatable_bond_count 7 ChemAxon acceptor_count 6 ChemAxon donor_count 4 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon Specdb::CMs 2803 Specdb::CMs 119620 Specdb::CMs 129348 Specdb::CMs 867543 Specdb::CMs 867544 Specdb::CMs 867545 Specdb::CMs 867546 Specdb::CMs 867547 Specdb::CMs 867548 Specdb::CMs 867549 Specdb::CMs 867550 Specdb::CMs 867551 Specdb::CMs 867552 Specdb::MsMs 95958 Specdb::MsMs 95959 Specdb::MsMs 95960 Specdb::MsMs 160341 Specdb::MsMs 160342 Specdb::MsMs 160343 Specdb::MsMs 2226496 Specdb::MsMs 2226915 Specdb::MsMs 2228233 Specdb::MsMs 2228842 Specdb::MsMs 2229353 Specdb::MsMs 2230124 Specdb::MsMs 2231783 Specdb::MsMs 2232399 Specdb::MsMs 2233726 Specdb::MsMs 2234134 Specdb::MsMs 2234815 Specdb::MsMs 2235213 Specdb::MsMs 2237011 Specdb::MsMs 2244092 Specdb::MsMs 2245984 Specdb::MsMs 2250301 Specdb::MsMs 2252117 Specdb::MsMs 3426546 Specdb::MsMs 3426547 17376 Beer Type 2 specific 5.15 5.15 5.15 mg/L Green bell pepper Type 1 specific Capsicum annuum 4072 7.0 7.0 7.0 mg/100 g Green zucchini Type 1 specific Cucurbita pepo var. cylindrica 12.0 12.0 12.0 mg/100 g Italian sweet red pepper Type 1 specific Capsicum annuum 4072 19.0 19.0 19.0 mg/100 g Red bell pepper Type 1 specific Capsicum annuum 4072 10000.0 10000.0 10000.0 mg/100 g