Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Polyethylene Glycol PEG400

Dow POLYETHYLENE GLYCOL PEG400 is a low-molecular-weight, water-soluble polymer with excellent solvent, plasticizing and humectant properties. Widely used in pharmaceuticals, cosmetics and industrial applications for its low toxicity, high purity and consistent viscosity. Non-volatile, non-irritating and biocompatible. Meets USP/EP/JP specifications. Ideal for drug delivery systems, ointment bases and formulation solvents.
  • polyethylene glycol peg400_01ca6bac
  • polyethylene glycol peg400_01ca6bac

Features Of Polyethylene Glycol PEG400

  1. Non-toxic, non-irritating, and widely accepted for use in pharmaceutical and cosmetic formulations.

  2. Highly water-soluble with excellent hygroscopicity and humectant properties.

  3. Low volatility and thermal stability up to 150 °C under inert conditions.

  4. Compatible with a broad range of active ingredients, polymers, and surfactants.

  5. USP/EP/JP compliant grade available with strict heavy metal and residual solvent controls.

Typical Applications Of Polyethylene Glycol PEG400

  1. Pharmaceutical solubilizer and vehicle for oral liquid dosage forms and injectables.

  2. Humectant and viscosity modifier in personal care products including creams, gels, and toothpaste.

  3. Plasticizer and processing aid in polymer film coating and tablet binder systems.

  4. Carrier solvent for agrochemical formulations and pesticide concentrates.

  5. Reaction medium and molecular weight regulator in polyurethane and polyester synthesis.

Specifications Of Polyethylene Glycol PEG400

Chemical TypePolyether diol (polyethylene oxide)
Average Molecular Weight380–420 g/mol
Product FormClear, colorless to pale yellow viscous liquid
AppearanceClear, slightly viscous liquid at 25 °C
Refractive Index (20 °C)1.452–1.458
Hydroxyl Value (mg KOH/g)130–160
Water Content (KF)≤0.5% w/w
pH (10% aqueous solution)5.0–7.0


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