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

Dow PEG-3350 Polyethylene Glycol 3350

Dow PEG-3350 is a high-purity, pharmaceutical-grade polyethylene glycol 3350 from Dow’s trusted PEG series. This nonionic, water-soluble polymer offers excellent solubilizing, lubricating, and humectant properties. Widely used in drug delivery, cosmetics, and industrial formulations, it ensures batch-to-batch consistency, low toxicity, and regulatory compliance (USP/EP). Ideal for ointments, tablets, and personal care products requiring precise molecular weight (~3350 Da) and superior performance.
  • dow peg 3350 polyethylene glycol 3350_e0523f09
  • dow peg 3350 polyethylene glycol 3350_e0523f09

Features Of Dow PEG-3350 Polyethylene Glycol 3350

  1. Highly purified, low-volatility polyethylene glycol with narrow molecular weight distribution (Mn ≈ 3350 Da).

  2. Excellent water solubility and hygroscopicity, enabling effective moisture retention in formulations.

  3. Non-ionic, non-toxic, and non-irritating—compliant with major pharmacopeial standards including USP/EP.

  4. Thermally stable up to 150 °C and chemically inert toward most active ingredients and excipients.

  5. Low residual ethylene oxide and aldehyde content, supporting stringent regulatory requirements for pharmaceutical and personal care use.

Typical Applications Of Dow PEG-3350 Polyethylene Glycol 3350

  1. Pharmaceutical tablet binder and controlled-release matrix former in oral solid dosage forms.

  2. Vehicle and solubilizer for topical and ophthalmic preparations in personal care and dermatological products.

  3. Stabilizer and cryoprotectant in biopharmaceutical formulation and protein-based therapeutics.

  4. Plasticizer and processing aid in polymer film coating systems for sustained drug delivery.

Specifications Of Dow PEG-3350 Polyethylene Glycol 3350

Chemical TypePolyethylene Glycol (PEG), synthetic polymer
Product FormWhite to off-white solid flakes or powder
AppearanceFree-flowing, odorless, waxy solid
Molecular Weight (Mn)3,200–3,500 Da (typical Mn ≈ 3350)
Hydroxyl Value32–36 mg KOH/g
Acid Number≤ 0.5 mg KOH/g
Water Content≤ 1.0% (by Karl Fischer titration)
Residue on Ignition≤ 0.1%


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