30089

L-cisteína

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

• Sinônimo(s): Ácido (R)-2-amino-3-mercaptopropiônico
• Fórmula linear: HSCH₂CH(NH₂)CO₂H
• Número CAS: 52-90-4
• Peso molecular: 121.16
• Beilstein: 1721408
• Número CE: 200-158-2
• Número MDL: MFCD00064306
• Código UNSPSC: 12352209
• eCl@ss: 32160406
• ID de substância PubChem: 57648406
• NACRES: NA.26

Propriedades

• Nome do produto: L-cisteína, BioUltra, ≥98.5% (RT)
• linha de produto: BioUltra
• Ensaio: ≥98.5% (RT)
• Formulário: powder or crystals
• atividade óptica: [α]20/D +8.0±0.5°, c = 5% in 5 M HCl
• técnica(s): HPLC: suitable
• Impurezas: insoluble matter, passes filter test; ≤0.5% foreign amino acids
• resíduo de ignição: ≤0.05% (as SO₄)
• perda: ≤0.05% loss on drying, 20 °C (HV)
• cor: white
• pf: 240 °C (dec.) (lit.)
• solubilidade: 1 M HCl: 1 M at 20 °C, clear, colorless
• traços de ânion: chloride (Cl^-): ≤100 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• traços de cátion: 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
• Absorção UV: λ: 260 nm A_max: 1.5; λ: 280 nm A_max: 0.2
• cadeia de caracteres SMILES: 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
• chave InChI: XUJNEKJLAYXESH-REOHCLBHSA-N

Descrição

Aplicação

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.[1][2]

Ações bioquímicas/fisiológicas

Agonista de receptor glutamatérgico de NMDA.

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.[3]

Informações de segurança

• Código de classe de armazenamento: 11 - Combustible Solids
• Classe de risco de água (WGK): WGK 1
• Ponto de fulgor (°F): Not applicable
• Ponto de fulgor (°C): Not applicable
• Equipamento de proteção individual: dust mask type N95 (US), Eyeshields, Gloves