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MilliporeSigma

81240

Sigma-Aldrich

Poly(ethylene glycol)

greener alternative

average Mn 4,000, flakes

Synonym(s):

Polyethylene glycol, PEG

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$196.00
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$680.00

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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:
24887706
NACRES:
NA.23

Key Documents

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form

flakes
powder

Quality Level

200

mol wt

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

greener alternative product characteristics

Safer Solvents and Auxiliaries
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

mp

58-61 °C

Ω-end

hydroxyl

α-end

hydroxyl

greener alternative category

Aligned

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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Show Differences

1 of 4

This Item
81260202398202444
Poly(ethylene glycol) average Mn 4,000, flakes

Sigma-Aldrich

81240

Poly(ethylene glycol)

Poly(ethylene glycol) average Mn 6,000

Sigma-Aldrich

81260

Poly(ethylene glycol)

Poly(ethylene glycol) average Mn 400

Sigma-Aldrich

202398

Poly(ethylene glycol)

Poly(ethylene glycol) average Mn 3,350, powder

Sigma-Aldrich

202444

Poly(ethylene glycol)

form

powder

form

flakes

form

viscous liquid

form

powder

Quality Level

200

Quality Level

300

Quality Level

200

Quality Level

200

mol wt

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

mol wt

Mn 5,000-7,000, average Mn 6,000

mol wt

Mn 380-420, average Mn 400

mol wt

average Mn 3,350

mp

58-61 °C

mp

60-63 °C

mp

4-8 °C (lit.)

mp

54-58 °C (lit.)

biological source

platelets

biological source

-

biological source

-

biological source

-

Ω-end

hydroxyl

Ω-end

hydroxyl

Ω-end

hydroxyl

Ω-end

hydroxyl

General description

Polyethylene glycol (PEG) is a hydrophilic polymer. It can be easily synthesized by the anionic ring opening polymerization of ethylene oxide, into a range molecular weights and variety of end groups. When crosslinked into networks PEG can have high water content, forming “hydrogels PEG is a suitable material for biological applications because it does not trigger an immune response.
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Green Chemistry. Polyethylene glycol (PEG) is an eco-friendly, biodegradable polymer widely used in pharmaceuticals and cosmetics. Its non-toxic nature and versatility make it a sustainable choice, derived from renewable resources, contributing to greener product formulations. Click here for more information.

Application

Polyethylene glycol (PEG) platelets were used:
  • in PEG-directed gene delivery of protoplast transfection and incubation[1]
  • to prepare extraction for measuring cytosolic phosphoenolpyruvate carboxykinase (PEPCK) from plant tissues
  • as DNA transformation agent in a study of transient gene expression of plant protoplasts, derived from rice leaf sheaths.[2]
  • in preparing isothermal assembly buffer and TSS broth preparation for unique nucleotide sequence (UNS)-guided assembly of repetitive DNA parts[3]
  • in transformation of DNA into log-phase cells of the budding yeast Saccharomyces cerevisiae.[4]
  • as DNA transformation reagent[5]

Other Notes

Polymer networks with grafted cell adhesion peptides for highly biospecific cell adhesive substrates[6]

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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Certificates of Analysis (COA)

Lot/Batch Number
BCCN6987
BCCN0140
BCCM2408
BCCK7755
BCCH6459

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Oleg Raitskin et al.
PloS one, 14(2), e0211598-e0211598 (2019-02-28)
Molecular tools adapted from bacterial CRISPR (Clustered Regulatory Interspaced Short Palindromic Repeats) systems for adaptive immunity have become widely used for plant genome engineering, both to investigate gene functions and to engineer desirable traits. A number of different Cas (CRISPR-associated)
Shen, Jinbo, et al. "Isolation, culture, and transient transformation of plant protoplasts
Shen J, et al.
Current Protocols in Cell Biology, 2014, 2-8 null
Jennifer DeMars Tripp et al.
Yeast (Chichester, England), 30(5), 191-200 (2013-03-14)
Chemical-based methods have been developed for transformation of DNA into log-phase cells of the budding yeast Saccharomyces cerevisiae with high efficiency. Transformation of early stationary-phase cells, e.g. cells grown in overnight liquid cultures or as colonies on plates, is less
A simple and effective method to encapsulate tobacco mesophyll protoplasts to maintain cell viability
Lei R, et al.
Methods, 24-32 (2015)
P D Drumheller et al.
Analytical biochemistry, 222(2), 380-388 (1994-11-01)
Polymer networks of poly(ethylene glycol) (PEG) in densely cross-linked matrices of acrylic acid (AA) and trimethylolpropane triacrylate were synthesized as biospecific cell adhesive substrates. Networks grafted with synthetic adhesion peptides produced substrates to investigate long-term, receptor-mediated cell/surface interactions, without nonspecific
View All Related Papers

Questions

1–2 of 2 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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