84797

Poli(etilenoglicol)

BioUltra, 2,000

• Sinônimo(s): PEG
• Fórmula linear: H(OCH₂CH₂)_nOH
• Número CAS: 25322-68-3
• Número MDL: MFCD00081839
• Código UNSPSC: 12352104
• ID de substância PubChem: 24888269
• NACRES: NA.26

Propriedades

• Nível de qualidade: 200
• linha de produto: BioUltra
• forma: powder
• peso molecular: M_r 1900-2200
• Impurezas: insoluble matter:, passes filter test; ≤0.001% peroxides (as H₂O₂):
• pH: 5.5-7.0 (25 °C, 50 mg/mL in H₂O)
• pf: 50-53 °C
• solubilidade: H₂O: 50 mg/mL at 25 °C, clear, colorless
• 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: ≤0.1; λ: 280 nm A_max: ≤0.04
• 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. It exhibitsstealth effect, prolonged blood circulation and excellent biocompatibility. PEG has an ability to elicit hypersensitivity reactions via stimulating complement pathway.

Aplicação

Poly(ethylene glycol) has been used:

• as a constituent in the preparation of liquid desiccant solutions
• as a precipitating agent and additive in protein crystallization
• as a representative biocompatible polymer to decipher its interactions with cellular system at molecular level

Informações de segurança

• Código de classe de armazenamento: 11 - Combustible Solids
• Classe de risco de água (WGK): WGK 1
• Ponto de fulgor (°F): 281.5 °F - closed cup
• Ponto de fulgor (°C): 138.6 °C - closed cup
• Equipamento de proteção individual: Eyeshields, Gloves, type N95 (US)