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Polyethylene glycol
Names
IUPAC name
Polyethylene glycol
Identifiers
CAS Number
25322-68-3Y
ChemSpider
none
UNII
B697894SGQY
Properties
Chemical formula
C2nH4n+2On+1, n = 8.2 to 9.1
Molar mass
380-420 g/mol
Density
1.128 g/cm3
Melting point
4 to 8 °C (39 to 46 °F; 277 to 281 K)
Viscosity
90.0 cSt at 25 °C, 7.3 cSt at 99 °C
Hazards
Flash point
238 °C (460 °F; 511 K)
Lethal dose or concentration (LD, LC):
LD50 (median dose)
30 mL/kg, orally in rats
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
Chemical compound
PEG 400 (polyethylene glycol 400) is a low-molecular-weight grade of polyethylene glycol. It is a clear, colorless, viscous liquid. Due in part to its low toxicity, PEG 400 is widely used in a variety of pharmaceutical formulations.
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