Polyethylene glycol (PEGs) are prepared by polymerization of ethylene oxide. The degree of polymerization determines its molecular weight. It has a molecular structure of H-(O-CH2-CH2)n-OH. Polyethylene glycol are for chromatography, histology, microscopy and for special biochemical purposes.
Crystalline solid or semi-solid
-20°C, protected from light and moisture
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