CAS 9004-99-3 Nonionic Surfactant Polyethylene Glycol 300 PEG 300 Molecular Weight 270~330 g/mol

PEG-300 Stearate is a polyethylene glycol with an average molecular weight of 300. It is a colorless, transparent, and viscous liquid that is readily soluble in water, alcohols, and other polar solvents. Chemically stable and resistant to hydrolysis, it exhibits low toxicity and low irritation, along with excellent solubilizing, moisturizing, lubricating, and dispersing properties. Compatible with various surfactants, it is widely used in personal care products (as a moisturizing agent), pharmaceutical excipients, pesticide solvents, metalworking lubricants, resin plasticizers, and ink dispersion aids.

• Product Name: PEG-300 Stearate
• Other Name: Polyethylene glycol monostearate
• Chemical Composition: Ethylene oxide condensate
• Type: Nonionic surfactant
• CAS: 9004-99-3

Packaged in 200kg iron drums or 50kg plastic drums. This series of products is non-toxic and non-flammable, and should be stored and transported as general chemicals. Store in a dry, well-ventilated place. Shelf life: 2 years.

PEG-300 Stearate is a low-molecular-weight, water-soluble polyethylene glycol appearing as a colorless, transparent, and viscous liquid. It is characterized by low toxicity, low irritation, stability, and resistance to hydrolysis. It offers key functional properties such as solubilization, moisturizing, lubrication, dispersion, and emulsification; it is compatible with various surfactants and serves as a raw material for synthesizing ester-type surfactants.

Its primary application is in the pharmaceutical sector, where it functions as a solubilizer for injections, a carrier for solid dispersions of poorly soluble drugs, and a water-soluble base for ointments and suppositories; it can also be combined with high-molecular-weight PEG to adjust formulation viscosity and stability. In personal care products, it acts as a moisturizing agent to improve skin feel and system stability. Industrially, it is used as a solvent for pesticides, a metal lubrication aid, a resin plasticizer, and a dispersing agent for inks, making it suitable for a wide range of fine processing applications.