L-Cystine,≥99.7% (TLC)

• CAS: 56-89-3
• Catalog Number: ACM56893-5
• 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: 0.5 g/10 mL, clear, colorless
• Application: L-Cystine has been used to prepare stock solution which in turn is utilized for determining the L-cysteine and L-cystine in pharmaceutical preparations as well as in urine samples by using spectrofluorimetric flow injection method.
• Assay: ≥99.7% (TLC)
• Beilstein: 1728094
• Biochem Physiol Actions: Cystine is required for the synthesis of glutathione that protects the cells from oxidative stress. A specific x(c)-cysteine/glutamate antiporter mediates cellular uptake of cysteine in exchange for glutamate. Inhibition of cysteine uptake induces toxicity in neuronal cells.
• Color: white
• EC Number: 200-296-3
• Form: powder or crystals
• MDL Number: MFCD00064228
• NACRES: NA.26
• Optical Activity: [α]20/D -219±5°, c = 1% in 1 M HCl
• PubChem ID: 329753347
• Quality Level: 200
• Storage Temperature: 2-8℃