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Merck

95172

Sigma-Aldrich

Poly(ethylenglykol)

BioUltra, 20,000

Synonym(e):

PEG

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About This Item

Lineare Formel:
H(OCH2CH2)nOH
CAS-Nummer:
MDL-Nummer:
UNSPSC-Code:
12352104
PubChem Substanz-ID:
NACRES:
NA.26

Qualitätsniveau

Produktlinie

BioUltra

Form

flakes

Mol-Gew.

Mr ~16000-24000

Verunreinigungen

insoluble matter:, passes filter test
≤0.001% peroxides (as H2O2):

pH-Wert

5.5-7.0 (25 °C, 50 mg/mL in H2O)

mp (Schmelzpunkt)

63-66 °C

Löslichkeit

H2O: 50 mg/mL at 25 °C, clear, colorless

Anionenspuren

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤50 mg/kg

Kationenspuren

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

UV-Absorption

λ: 260 nm Amax: 0.15
λ: 280 nm Amax: 0.20

SMILES String

C(CO)O

InChI

1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2

InChIKey

LYCAIKOWRPUZTN-UHFFFAOYSA-N

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Allgemeine Beschreibung

Polyethylene glycol (PEG) is a polyether compound that is used as an additive in cosmetics, pharmaceuticals, and food. It consists of repeated ethylene glycol units[-(CH2CH2O)n].

Anwendung

Poly(ethylene glycol) has been used as a non-absorbing polymer in aqueous dispersion or active gel assembly to stimulate the formation of filament bundles through depletion interaction.

Biochem./physiol. Wirkung

Polyethylene glycol (PEG) is a synthetic polymer that is used as a gold standard in bioconjugation and nanomedicine to extend blood circulation time and enhance drug efficacy. PEG-conjugated drugs are considered safe for use in humans and are approved by the U.S. Food and Drug Administration (FDA). PEG has several biomedical applications, including biosensing, imaging, and tissue engineering. It also repels protein adsorption and lowers the liver uptake, which helps in coating nanoparticles.

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 1

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

Eyeshields, Gloves, type N95 (US)


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Polyethylene glycol (PEG) is a polymer of choice in drug delivery systems. This USFDA-approved polymer is popular due to its tunable properties and well-established safety profile: prime requisites considered during the selection of any excipient in formulation development. The unique

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