243005

L-Cysteine, Free Base

Naturally-occurring non-essential amino acid.

• Synonyma: L-Cysteine, Free Base, Cys
• Empirický vzorec (Hillův zápis): C₃H₇NO₂S
• Číslo CAS: 52-90-4
• Molekulová hmotnost: 121.16
• UNSPSC Code: 12352209
• NACRES: NA.54
• MDL number: MFCD00064306
• eCl@ss: 32160406

Vlastnosti

• description: Merck USA index - 14, 2781
• Quality Segment: 100
• assay: ≥98% (perchloric acid titration)
• form: solid
• optical activity: [α]20/D +8 to +9°, c = 5 in 1 M HCl
• manufacturer/tradename: Calbiochem^®
• storage condition: OK to freeze
• impurities: ≤100 CFU/g Total microorganisms, ≤24 EU/g Endotoxin
• color: white
• solubility: water: 10 mg/mL, 1 M HCl: 50 mg/mL
• cation traces: Fe: ≤10 ppm, heavy metals (as Pb): ≤0.001%
• shipped in: ambient
• storage temp.: 15-25°C
• SMILES string: SCC([N+H3])C(=O)[O-]
• InChI: 1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)
• InChI key: XUJNEKJLAYXESH-UHFFFAOYSA-N

Popis

General description

Naturally occurring non-essential amino acid.

Naturally-occurring non-essential amino acid.

Packaging

Packaged under inert gas

Preparation Note

Aqueous stock solutions are stable for up to 24 h at -20°C. Acidic stock solutions, when aliquoted and stored at -20°C, are stable for up to 1 month.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

Toxicity: Harmful (C)

Bezpečnostní informace

• Skladovací třída: 11 - Combustible Solids
• wgk: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable