81268

Poli(etilenoglicol)

BioUltra, for molecular biology, 8,000

• Sinônimo(s): PEG
• Fórmula linear: H(OCH₂CH₂)_nOH
• Número CAS: 25322-68-3
• Número MDL: MFCD00081839
• Código UNSPSC: 12352104
• ID de substância PubChem: 24887728
• NACRES: NA.26

Propriedades

• grau: for molecular biology
• Nível de qualidade: 200
• linha de produto: BioUltra
• Formulário: powder
• peso molecular: M_r 7000-9000
• Impurezas: DNases, none detected; RNases, none detected; insoluble matter, passes filter test; phosphatases, none detected; proteases, none detected
• pH: 5.5-7.0 (25 °C, 50 mg/mL in H₂O)
• pf: 59-64 °C
• solubilidade: H₂O: 50 mg/mL at 20 °C, clear, colorless
• densidade: 1.0845 g/mL at 70 °C; 1.0689 g/mL at 90 °C
• traços de ânion: chloride (Cl^-): ≤50 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: ≤200 mg/kg; Li: ≤5 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Mo: ≤5 mg/kg; Na: ≤200 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Sr: ≤5 mg/kg; Zn: ≤5 mg/kg
• λ: 50 mg/mL in H₂O
• Absorção UV: λ: 260 nm A_max: 0.15; λ: 280 nm A_max: 0.10
• cadeia de caracteres SMILES: C(CO)O
• InChI: 1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2
• chave InChI: LYCAIKOWRPUZTN-UHFFFAOYSA-N

Descrição

Descrição geral

Poly(ethylene glycol) (PEG) is a non-ionic hydrophilic polymer and is available in different molecular weights. It helps in the purification and crystal growth of proteins and nucleic acids. PEG and dextran together result in aqueous polymer two phase system, which is required for the purification of biological materials. PEG also interacts with cell membrane, thereby allowing cell fusion.

Aplicação

Poly(ethylene glycol) has been used as a virioplankton concentrating agent. It has been used in the procedure involving ligation of 5′ mRNAs to RNA oligo linker.

Outras notas

Precipitant in the large-scale preparation of λgt10 bacteriophage

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: Eyeshields, Gloves, type N95 (US)