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

Dow PEG300 Polyethylene Glycol USP Grade

Dow PEG300 Polyethylene Glycol USP Grade is a high-purity, water-soluble polymer from Dow’s pharmaceutical-grade PEG series. It meets United States Pharmacopeia standards for safety and consistency, widely used as a solvent, plasticizer, or excipient in drug formulations, cosmetics, and diagnostics. Its low toxicity, excellent stability, and precise molecular weight (~300 g/mol) ensure reliable performance in regulated applications.
  • dow peg300 polyethylene glycol usp grade_8c50918e
  • dow peg300 polyethylene glycol usp grade_8c50918e

Features Of Dow PEG300 Polyethylene Glycol USP Grade

  1. Meets stringent United States Pharmacopeia (USP) specifications for purity, heavy metals, and microbial limits.

  2. Low volatility and high water solubility enable consistent performance in aqueous formulations.

  3. Non-toxic, non-irritating, and biocompatible—suitable for pharmaceutical and personal care applications requiring regulatory compliance.

  4. Excellent solvent and plasticizing properties with predictable viscosity and thermal stability.

  5. Manufactured under controlled GMP-like conditions with full traceability and lot-specific Certificates of Analysis.

Typical Applications Of Dow PEG300 Polyethylene Glycol USP Grade

  1. Vehicle and solubilizer in oral liquid pharmaceuticals, including suspensions and elixirs.

  2. Humectant and viscosity modifier in topical gels, creams, and ointments.

  3. Excipient in parenteral formulations where low molecular weight and USP compliance are critical.

  4. Carrier for active pharmaceutical ingredients (APIs) in transdermal and mucosal delivery systems.

  5. Stabilizer and processing aid in cosmetic emulsions and cleansing formulations.

Specifications Of Dow PEG300 Polyethylene Glycol USP Grade

Chemical TypePolyethylene glycol (PEG), USP grade
Average Molecular Weight285–315 g/mol
Product FormClear, colorless to pale yellow viscous liquid
AppearanceClear, slightly viscous, odorless liquid
SolubilityFreely soluble in water and common organic solvents (e.g., ethanol, chloroform)
pH (10% w/w aqueous solution)4.0–7.0
Heavy Metals (as Pb)≤ 10 ppm
Residue on Ignition≤ 0.1%


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