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Sigma-Aldrich

Poly(ethylene glycol)

average MN 35,000, hydroxyl

Synonym(s):

Polyethylene glycol, 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:
24887750
NACRES:
NA.23
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Product Name

Poly(ethylene glycol), 35,000

Quality Level

200

form

flakes

mol wt

average Mn 35,000

mp

64-66 °C

Ω-end

hydroxyl

α-end

hydroxyl

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 synthetic polymer that is an oligomer of ethylene oxide with properties such as cost efficiency, hydrophilicity, and biocompatibility that make it suitable in the production of biomedical hydrogels.[1][2][3]

Application

PEG can be used for a wide range of applications in the field of drug delivery, biomedical applications and energy storage systems.[4][5]

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

281.5 °F - closed cup

Flash Point(C)

138.6 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCM7727
BCCL6358
BCCM5375
BCCJ7381
BCCH7569

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Biomedical hydrogels
Biomaterials, Artificial Organs and Tissue Engineering, 107-115 (2005)
Hydrogels in craniofacial tissue engineering
Biomaterials for Oral and Dental Tissue Engineering, 47-64 (2017)
Entrapment of essential oils in hydrogels for biomedical applications
Polymeric Gels, 125-141 (2018)
Oğuz Kaan Kırbaş et al.
Scientific reports, 9(1), 19159-19159 (2019-12-18)
From biomarkers to drug carriers, Extracellular Vesicles (EVs) are being used successfully in numerous applications. However, while the subject has been steadily rising in popularity, current methods of isolating EVs are lagging behind, incapable of isolating EVs at a high
Permeability and blood compatibility properties of chitosan-poly(ethylene oxide) blend membranes for haemodialysis
Amiji MM
Biomaterials, 16(8), 593-599 (1995)
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Questions

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  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/449/386/product-dating-information-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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