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Poly(ethylene glycol)

Name: Poly(ethylene glycol)
Brand: SIGMA

BioUltra, 3,000

Sustainability features

Synonym(s):

Polyethylene glycol, PEG

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About This Item

Linear Formula:

H(OCH₂CH₂)_nOH

CAS Number:

25322-68-3

NACRES:

NA.26

PubChem Substance ID:

24887699

UNSPSC Code:

12352104

MDL number:

MFCD00081839

Pricing and availability is not currently available.

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Properties

Quality Segment

200

product line

BioUltra

form

solid

mol wt

M_r 2700-3300

greener alternative product characteristics

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

sustainability

Sustainability features

impurities

insoluble matter, passes filter test, ≤0.001% 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 (SO₄^2-): ≤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 A_max: 0.09, λ: 280 nm A_max: 0.03

greener alternative category

SMILES string

C(CO)O

InChI

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

InChI key

LYCAIKOWRPUZTN-UHFFFAOYSA-N

Description

General description

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.

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) (PEG) has been used to study PEG-β lactoglobulin interaction. It has also been used to study the interaction of serum albumins with PEG.

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This Item	P3015	202452	81210
Sigma-Aldrich 81227 Poly(ethylene glycol)	Sigma-Aldrich P3015 Poly(ethylene glycol)	Sigma-Aldrich 202452 Poly(ethylene glycol)	Sigma-Aldrich 81210 Poly(ethylene glycol)
description BioUltra, 3,000	description average mol wt 200	description average M_v ~8,000, powder (crystalline)	description average M_w 1,500
form solid	form liquid	form powder (crystalline)	form solid
Quality Level 200	Quality Level 200	Quality Level 200	Quality Level 200
mol wt M_r 2700-3300	mol wt average mol wt 200	mol wt average M_v ~8,000	mol wt average M_w 1,500
cation traces Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Li: ≤5 mg/kg, Sr: ≤5 mg/kg, Mg: ≤5 mg/kg, Cu: ≤5 mg/kg, Na: ≤200 mg/kg, K: ≤200 mg/kg, Zn: ≤5 mg/kg, Ba: ≤5 mg/kg, Al: ≤5 mg/kg, Fe: ≤5 mg/kg, Cd: ≤5 mg/kg, Mn: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, As: ≤0.1 mg/kg, Mo: ≤5 mg/kg, Bi: ≤5 mg/kg, Ca: ≤10 mg/kg	cation traces -	cation traces -	cation traces -
impurities ≤0.001% peroxides (as H₂O₂), insoluble matter, passes filter test	impurities -	impurities -	impurities -
greener alternative category Aligned	greener alternative category Aligned	greener alternative category Aligned	greener alternative category Aligned

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Storage Class

10 - Combustible liquids

WGK

WGK 1

Flash Point (°F)

281.5 °F - closed cup

Flash Point (°C)

138.6 °C - closed cup

PPE (personal protective equipment)

Eyeshields, Gloves, type N95 (US)

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