PEG20000 (Polyethylene glycol 20000) can be used as a solubilizer. PEG20000 is a kind of biological materials or organic compounds that are widely used in life science research, can be degraded by bacteria.

Physicochemical Properties

Molecular Weight	20000
CAS #	25322-68-3
Appearance	White to off-white powder
Density	1.125
Boiling Point	250ºC
Melting Point	-65ºC
Flash Point	171ºC
Vapour Pressure	<0.01 mm Hg ( 20 °C)
Index of Refraction	1.458-1.461
LogP	0
HS Tariff Code	2934.99.9001
Storage	Powder-20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month
Shipping Condition	Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

Biological Activity

References

[1]. Biochemical reagents[M]//Methods of Enzymatic Analysis. Academic Press, 1965: 967-1037. [2]. Symbiotic degradation of polyethylene glycol (PEG) 20,000-phthalate polyester by phthalate ester- and PEG 20,000-utilizing bacteria. Journal of Fermentation and Bioengineering. Volume 82, Issue 6, 1996, Pages 575-579

Solubility Data

Solubility (In Vitro)

DMSO : ~200 mg/mL (~10.00 mM)

Preparing Stock Solutions		1 mg	5 mg	10 mg
	1 mM	0.0500 mL	0.2500 mL	0.5000 mL
	5 mM	0.0100 mL	0.0500 mL	0.1000 mL
	10 mM	0.0050 mL	0.0250 mL	0.0500 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.