L-Cystine, ≥98% (TLC), crystalline

• CAS: 56-89-3
• Catalog Number: ACM56893-4
• Category: Amino Acids
• Molecular Weight: 240.3
• Molecular Formula: [-SCH2CH(NH2)CO2H]2
• Synonyms: (R,R)-3,3'-Dithiobis(2-aminopropionicacid)
• Canonical SMILES: N[C@@H](CSSC[C@H](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)/t3-,4-/m0/s1
• InChI Key: LEVWYRKDKASIDU-IMJSIDKUSA-N
• Melting Point: >240 ℃(dec.) (lit.)
• Solubility: 1 M HCl: 50 mg/mL, clear, colorless to faintly yellow
• Application: L-Cystine has been used in in vitro cystine solubility assay to identify potential drugs that influence cystine solubility. It is also used as a supplement of phosphate-buffered saline to slice and wash periprosthetic tissues.
• Assay: ≥98% (TLC)
• Beilstein: 1728094
• Biochemical Physiological Action: Cysteine is the source of disulfide linkages in proteins and has a role in sulfur transport. It undergoes rapid oxidation to form cystine at physiological pH. L-cystine is crucial for oxygen production and low density lipoprotein modification by arterial smooth muscle cells. It also has a role in the synthesis of glutathione.
• Color: white to off-white
• EC Number: 200-296-3
• Form: crystalline
• MDL Number: MFCD00064228
• NACRES: NA.26
• PubChem ID: 24893101
• Quality Level: 200
• Storage Temperature: Store at room temperature