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P5413

Sigma-Aldrich

Poly(ethylene glycol)

for molecular biology, average mol wt 8,000

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Synonym(s):
Poly (ethylene oxide), PEG
Linear Formula:
H(OCH2CH2)nOH
CAS Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.31

grade

for molecular biology

Quality Level

form

powder

mol wt

average mol wt 8,000

solubility

water: soluble (approximately 630 mg/ml, 20 °C)

density

1.0845 g/mL at 70 °C
1.0689 g/mL at 90 °C

foreign activity

DNase, RNase and NICKase, none detected

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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This Item
8124020244495172
vibrant-m

P5413

Poly(ethylene glycol)

-
vibrant-m

81240

Poly(ethylene glycol)

-
vibrant-m

202444

Poly(ethylene glycol)

-
vibrant-m

95172

Poly(ethylene glycol)

Premium Grade
form

powder

form

powder

form

powder

form

flakes

mol wt

average mol wt 8,000

mol wt

Mn 3,500-4,500, average Mn 4,000

mol wt

average Mn 3,350

mol wt

Mr ~16000-24000

density

1.0845 g/mL at 70 °C, 1.0689 g/mL at 90 °C

density

-

density

1.204 g/mL at 25 °C

density

-

grade

for molecular biology

grade

-

grade

-

grade

-

solubility

water: soluble (approximately 630 mg/ml, 20 °C)

solubility

-

solubility

-

solubility

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

General description

Polyethylene glycol (PEG) is a polymer of ethylene oxide and water, obtained upon condensation. PEGs are susceptible to oxidative degradation in the presence of air. Minimizing the exposure of PEG to elevated temperatures and/or exposure to oxygen or addition of an antioxidant can limit the amount of degradation. PEGs do not hydrolyze or deteriorate upon storage. PEGs do not support the growth of molds.
Polyethylene glycol (PEG) is used in detergents, emulsifying agents, soaps, metal costing process, pharmaceutical preparations and cosmetics. PEG is commonly used as a lubricant. It′s application is also observed in chromatographic stationary phases. PEG prevents crystal formation in emulsions.

Application

Poly(ethylene glycol) has been used:
  • in protoplast suspension
  • to prevent phase separation in emulsion
  • in phage tail-like particles precipitation
  • for purifying and intensifying products of polymerase chain reaction

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)


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Related Content

Polyethylene glycol (PEG), also sometimes referred to as polyethylene oxide (PEO), is a condensation polymer of ethylene oxide and water that has several chemical properties that make it useful for biological, chemical and pharmaceutical applications.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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