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Sigma-Aldrich

Poly(ethylene glycol)

BioUltra, 3,350

Synonym(s):

Polyethylene glycol, Polyethylene oxide, Polyoxyethylene, PEG

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About This Item

Linear Formula:
H(OCH2CH2)nOH
CAS Number:
25322-68-3
MDL number:
MFCD00081839
UNSPSC Code:
12352104
PubChem Substance ID:
24889075
NACRES:
NA.26

Quality Level

200

product line

BioUltra

form

powder

mol wt

Mr 3000-3700

impurities

insoluble matters, passes filter test

pH

5.5-7.0 (25 °C, 50 mg/mL in H2O)

solubility

H2O: 50 mg/mL, clear, colorless

anion traces

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

cation traces

Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤5 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: 0.06
λ: 280 nm Amax: 0.03

SMILES string

C(CO)O

InChI

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

InChI key

LYCAIKOWRPUZTN-UHFFFAOYSA-N

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General description

Poly(ethylene glycol) (PEG) is a linear polyether of ethylene glycol (ethane-1,2-diol). It is soluble in water, benzene, ethanol, acetonitrile, and dichloromethane. However, it is insoluble in diethyl ether and hexane. This non-ionic polymer can exist in the monomer and aqueous phases.

Application

Poly(ethylene glycol) has been used:

  • to grow the crystals of HLA-A∗02:01-N222-230 LLLDRLNQL (pHLA) complex
  • in the fabrication of ultrathin, free-standing, and porous polymer membranes for retinal tissue engineering
  • to grow the crystals of the C2c2-crRNA complex
  • to grow the crystals of the apo-C2c2 thermolysin-resistant core

Biochem/physiol Actions

Poly(ethylene glycol) (PEG) is used in several pharmaceutical applications. This polymer occurs as a preservative and is used in biomedical applications like drug delivery systems, biosensing, and tissue engineering. PEG is also used in cosmetic ointments and creams. It is used as a binding and dispersing agent in chemical and other industries.

Features and Benefits

  • Environment friendly
  • Biocompatible
  • Unique solvent solution

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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