30089

L-Cysteine

≥98.5% (RT), suitable for HPLC, BioUltra

• Szinonimák: (R)-2-Amino-3-mercaptopropionic acid
• Lineáris képlet: HSCH₂CH(NH₂)CO₂H
• CAS-szám: 52-90-4
• Molekulatömeg: 121.16
• Beilstein: 1721408
• EC-szám: 200-158-2
• MDL-szám: MFCD00064306
• UNSPSC kód: 12352209
• eCl@ss: 32160406
• PubChem Substance ID: 57648406
• NACRES: NA.26

Tulajdonságok

• Terméknév: L-Cysteine, BioUltra, ≥98.5% (RT)
• termékcsalád: BioUltra
• Minőségi szint: 200
• Teszt: ≥98.5% (RT)
• Forma: powder or crystals
• optikai aktivitás: [α]20/D +8.0±0.5°, c = 5% in 5 M HCl
• technika/technikák: HPLC: suitable
• szennyeződések: insoluble matter, passes filter test; ≤0.5% foreign amino acids
• izzítási maradék: ≤0.05% (as SO₄)
• veszteség: ≤0.05% loss on drying, 20 °C (HV)
• szín: white
• mp: 240 °C (dec.) (lit.)
• oldhatóság: 1 M HCl: 1 M at 20 °C, clear, colorless
• anion nyomok: chloride (Cl^-): ≤100 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• kation nyomok: Al: ≤5 mg/kg; As: ≤0.1 mg/kg; Ba: ≤5 mg/kg; Bi: ≤5 mg/kg; Ca: ≤10 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤5 mg/kg; K: ≤50 mg/kg; Li: ≤5 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Mo: ≤5 mg/kg; NH₄⁺: ≤500 mg/kg; Na: ≤100 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Sr: ≤5 mg/kg; Zn: ≤5 mg/kg
• λ: 1 M in 1 M HCl
• UV-elnyelés: λ: 260 nm A_max: 1.5; λ: 280 nm A_max: 0.2
• SMILES string: N[C@@H](CS)C(O)=O
• InChI: 1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)/t2-/m0/s1
• Nemzetközi kémiai azonosító kulcs: XUJNEKJLAYXESH-REOHCLBHSA-N

Leírás

Alkalmazás

L-Cysteine has been used in quenching of unreacted maleimide during antibody grafting. It has also been used in the preparation of nitrosocysteine stock solution, that has been employed to induce S-nitrosylation to achieve reversible cysteine modification.

Biokémiai/fiziológiai hatások

Cysteine is one of the functional amino acids that regulates metabolism for growth, reproduction, maintenance and immunity. Cysteine provides the disulfide linkage in proteins. It is directly associated with the transport of sulfur. Taurine, a metabolic product of cysteine acts as an antioxidant and controls the cellular redox state. Cysteine is involved in the formation of hydrogen sulfide that is utilized as a signaling molecule.

NMDA glutamatergic receptor agonist.

Biztonsági adatok

• Tárolási osztály kódja: 11 - Combustible Solids
• WGK: WGK 1
• Lobbanási pont (F): Not applicable
• Lobbanási pont (C): Not applicable
• Egyéni védőeszköz: dust mask type N95 (US), Eyeshields, Gloves