Polyglycerol-4 is a clear yellowish viscous liquid. It is less hygroscopic than glycerol or diglycerol.
Identification
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INCI name
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Polyglycerin-4
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CAS Number
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25618-55-7
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Aspect
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Yellowish viscous liquid, having almost no odor
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Composition
Solvay Polyglycerol-4 is characterized by an oligomer distribution centered on tetraglycerol.
It contains minimum 75% of diglycerol, triglycerol and tetraglycerol with only trace amounts of glycerol.
Chemical structure
Linear glycerol oligomers have the following structure:
where n averages 4
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