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Ethylene Glycol

Purer and more stable than glycerol for protein storage.

Ethylene glycol

Thermo Scientific Pierce Ethylene Glycol Solution provides exceptional antifreeze protection and storage stability for antibody-enzyme conjugates because it is purified to remove impurities commonly found traditional glycerol stocks.

This product is a 50% (w/v) aqueous solution of highly purified ethylene glycol. When mixed in equal volume with purified protein samples, such as primary antibodies, the solution stabilizes and maintains the mixture as a liquid during freezer storage (-20°). Ethylene glycol is a suitable alternative to glycerol for most protein-storage applications. In fact, this preparation of ethylene glycol is devoid of various common glycerol impurities and potiential degradation products that are damaging to certain enzymes.


  • Specially purified to remove impurities such as aldehydes, peroxides, iron and UV absorbing hydrocarbons
  • Suitable for enzyme storage without the worry of losing enzymatic activity
  • Stable for months


  1. Washabaugh, M.W. and Collins, K.D. (1983). Purification of aqueous ethylene glycol. Anal. Biochem. 134, 144-152.
  2. Schryvers, A. and Weiner, J.H. (1981). The anaerobic sn-glycerol-3-phosphate dehydrogenase of Escherichia coli. J. Biol. Chem. 256(19), 9959-9965.

Related Products:

Pierce Peroxidase Conjugate Stabilizer – ethylene glycol plus anti-microbial agent and buffer
Guardian Peroxidase Conjugate Stabilizer-Diluent – for diluted storage at 4° or room temperature
Protein Stabilizing Cocktail – for non-peroxidase enzymes

Ordering Information
Product # Description Pkg. Size Instructions MSDS CofA Price
29810 Ethylene Glycol
Formulation: Ethylene glycol; 50% (w/v) aqueous solution
Sufficient For: Mixture 1:1 (v/v) with 200mL of protein samples for freezer storage
200mL MSDS for product #29810 Ethylene Glycol Certificate of Analysis for product #29810 Ethylene Glycol $98.00

Now available on lifetechnologies.com
29810B Ethylene Glycol
Formulation: Ethylene glycol; 50% (w/v) aqueous solution
Custom MSDS for product #29810B Ethylene Glycol Certificate of Analysis for product #29810B Ethylene Glycol Bulk Quote Request

Instructions | MSDS | CofA
Product Instructions | MSDS | CofA  

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