Polyethylene Glycol 400 (PEG 400)

Poly(ethylene Glycol) ~400 is a polymer of ethylene oxide with a molecular weight of ~400 Daltons. Poly(ethylene Glycol) ~400 is considered a low molecular weight polyethylene glycol, and is used as a hydrophilic molecular probe for measuring intestinal permeability. Poly(ethylene Glycol) ~400 is also used as a hydrophilic plasticizer.||Synonyms:|Polyglycol; Polyethylene oxide; Polyoxyethylene||CAS No:|25322-68-3||Molecular Formula:|(C₂H₄O)nH₂O||Molecular Weight:|~400||Appearance:|Due to its specific melting range the product may be solid, liquid, a solidified melt or a supercooled melt.||Hydroxyl Value:|264-295||Density (d 20ºC/4ºC):|1.124-1.127||Vapor Pressure:|<0.1 hPa ( 20°C)||Autoignition Temp:|360 °C (DIN 51794)||pH:|5-7 (20°C, 100g/L in H2O)||Kinematic Viscosity:|97-110 cSt(20°C)||Melting Point:|5°C||Storage and Stability:|Stable for 12 months after receipt at RT.