779539

L-Cystin

produced by Wacker Chemie AG, Burghausen, Germany, ≥98.5%

• Synonym(e): (R,R)-3,3′-Dithio-bis-(2-aminopropionsäure)
• Lineare Formel: [-SCH₂CH(NH₂)CO₂H]₂
• CAS-Nummer: 56-89-3
• Molekulargewicht: 240.30
• Beilstein: 1728094
• EG-Nummer: 200-296-3
• MDL-Nummer: MFCD00064228
• UNSPSC-Code: 12352209
• PubChem Substanz-ID: 329768048
• NACRES: NA.22

Eigenschaften

• Qualität: produced by Wacker Chemie AG, Burghausen, Germany
• Assay: ≥98.5%
• Form: powder
• Optische Aktivität: [α]/D -224 to -218°
• Eignung der Reaktion: reaction type: solution phase peptide synthesis
• Verunreinigungen: ≤0.02% ammonium; ≤0.2% ninhidrin positive substances (each); ≤10 ppm heavy metals
• Glührückstand: ≤0.1%
• Verlust: ≤0.2% loss on drying
• mp (Schmelzpunkt): >240 °C (dec.) (lit.)
• Anionenspuren: chloride (Cl^-): ≤200 ppm; sulfate (SO₄^2-): ≤300 ppm
• Kationenspuren: As: ≤1 ppm; Fe: ≤10 ppm; Pb: ≤5 ppm
• Eignung: clear, colorless for appearance of solution
• SMILES String: 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
• InChIKey: LEVWYRKDKASIDU-IMJSIDKUSA-N

Beschreibung

Allgemeine Beschreibung

L-Cystine is an amino acid mainly found in the keratin of hair.

This product is supplied from Wacker FERMOPURE^® material, but is sold for R&D use only, not for drug, household or other uses.

Anwendung

L-Cystine can be used as a starting material for the synthesis of d-biotin, aromatic-bridged cystine cyclic peptides (cystinophanes), chiral imidazolidine disulfides and biodegradable PEGylated gadolinium-diethylenetriamine pentaacetic acid (Gd-DTPA) L-cystine copolymers.

Rechtliche Hinweise

FERMOPURE is a registered trademark of Wacker Chemie AG

Sicherheitshinweise

• Lagerklassenschlüssel: 11 - Combustible Solids
• WGK: WGK 1
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable