CAS No.: 25322-68-3
Polyethylene Glycol 200 (PEG 200) is a low-molecular-weight polymer of ethylene oxide. It belongs to the broader class of polyether compounds known as polyethylene glycols (PEGs) or macrogols. The "200" in its name approximates its average molecular weight, which typically ranges from 190 to 210 Daltons. At this weight, it exists as a clear, colorless, viscous liquid at room temperature.
Primary Applications:
Due to its favorable properties—particularly its water solubility, low toxicity, and solvent capacity—PEG 200 is used across numerous industries:
Pharmaceuticals: A versatile excipient used as a solvent, plasticizer, and lubricant in liquid formulations (syrups, oral solutions), soft gelatin capsules, and topical products (creams, ointments). It can enhance the solubility of poorly water-soluble drugs.
Cosmetics and Personal Care: Frequently employed as a humectant, solvent, and viscosity modifier in products like lotions, creams, deodorants, and toothpaste.
Chemical Industry: Serves as a plasticizer, lubricant, and conditioning agent in various chemical processes. It is also a valuable intermediate or starting material for synthesizing esters, surfactants, and other specialty chemicals.
Other Uses: Found in applications such as ceramics, textiles, metalworking, and as a softening agent for hides.
