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Merck

81255

Sigma-Aldrich

Poli(etilenglicol)

BioUltra, 6,000

Sinónimos:

PEG

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About This Item

Fórmula lineal:
H(OCH2CH2)nOH
Número de CAS:
MDL number:
UNSPSC Code:
12352104
PubChem Substance ID:
NACRES:
NA.26

Quality Level

product line

BioUltra

form

solid

mol wt

Mr 5000-7000

impurities

insoluble matter, passes filter test
≤20 mg/kg peroxides (as H2O2)

pH

5.5-7.0 (25 °C, 50 mg/mL in H2O)

solubility

H2O: 50 mg/mL at 20 °C, 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: ≤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: 0.10

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 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.

Application

Poly(ethylene glycol) has been used for stress (dehydration) treatment in seedlings of Galegae orientalis. It has been used for the preparation of aqueous two-phase system to study protein diffusion across the interface.

Other Notes

Fractional precipitation of proteins; Protoplast fusion; In virus purification; Electroblotting of proteins on agarose gel containing PEG and antibodies

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


Certificados de análisis (COA)

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Rapid bacteriophage sedimentation in the presence of polyethylene glycol and its application to large-scale virus purification.
K R Yamamoto et al.
Virology, 40(3), 734-744 (1970-03-01)
K C Ingham
Methods in enzymology, 182, 301-306 (1990-01-01)
Polyethylene glycol is a nondenaturing water-soluble polymer whose ability to precipitate protein from aqueous solution can be qualitatively understood in terms of an excluded volume mechanism. The increment in PEG concentration required to effect a given reduction in solubility is
J.B. Power et al.
Methods in Enzymology, 118, 578-578 (1986)
Carolina Reyes et al.
Research in microbiology, 171(3-4), 134-142 (2020-01-29)
Ammonia oxidizing archaea (AOA) inhabiting soils have a central role in the global nitrogen cycle. Copper (Cu) is central to many enzymes in AOA including ammonia monooxygenase (AMO), the enzyme involved in the first step of ammonia oxidation. This study
José A Manso et al.
Structure (London, England : 1993), 27(6), 952-964 (2019-04-23)
Mechanical stability of epithelia requires firm attachment to the basement membrane via hemidesmosomes. Dysfunction of hemidesmosomal proteins causes severe skin-blistering diseases. Two plakins, plectin and BP230 (BPAG1e), link the integrin α6β4 to intermediate filaments in epidermal hemidesmosomes. Here, we show

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