95904

Poli(etilenglicole)

BioUltra, 4,000

• Sinonimo/i: PEG
• Formula condensata: H(OCH₂CH₂)_nOH
• Numero CAS: 25322-68-3
• Numero MDL: MFCD00081839
• Codice UNSPSC: 12352104
• ID PubChem: 24890217
• NACRES: NA.26

Proprietà

• Livello qualitativo: 200
• Nome Commerciale: BioUltra
• Forma fisica: powder
• PM: M_r 3500-4500
• Impurezze: insoluble matter:, passes filter test; ≤0.001% peroxides (as H₂O₂):
• pH: 5.5-7.0 (25 °C, 50 mg/mL in H₂O)
• Punto di fusione: 58-61 °C
• Solubilità: H₂O: 50 mg/mL at 25 °C, clear, colorless
• Anioni in tracce: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• Cationi in tracce: 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
• Assorbanza UV: λ: 260 nm A_max: ≤0.10; λ: 280 nm A_max: ≤0.04
• Stringa SMILE: C(CO)O
• InChI: 1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2; LYCAIKOWRPUZTN-UHFFFAOYSA-N

Descrizione

Descrizione generale

Poly(ethylene glycol) (PEG) is a polymer ethylene glycol units and is hydrophilic in nature. PEG is structurally flexible and has high hydration capacity. PEG is biocompatible and is devoid of steric hindrances in its structure. PEG is a Food and Drug Administration (FDA) approved drug conjugates. It is nonimmunogenic and safe. PEG conjugation improves solubility and dissolution of diabetes drug, Gliclazide. PEG is widely used as a reagent in biochemistry and molecular biology experiments. It is used in carbon nanotube functionalization.

Applicazioni

Poly(ethylene glycol) has been used:

• as a component of wheat protoplast isolation and transformation buffer
• as an additive in suspension cell culture
• as a component of yeast transformation buffer
• as a component of crystallization buffer in cysteine protease ATG4B crystallization

Informazioni sulla sicurezza

• Codice della classe di stoccaggio: 11 - Combustible Solids
• Classe di pericolosità dell'acqua (WGK): WGK 1
• Punto d’infiammabilità (°F): 281.5 °F - closed cup
• Punto d’infiammabilità (°C): 138.6 °C - closed cup
• Dispositivi di protezione individuale: Eyeshields, Gloves, type N95 (US)