Chemical Formula: H(OCH₂CH₂)nOH CAS Number: 25322-68-3 Weight: 380-420 g/mol INDUSTRIAL: Serves as a lubricant in various manufacturing processes, as well as a binder in the production of certain materials. FOOD INDUSTRY: Employed as a food additive, primarily as a solvent for flavors and colors. Pharmaceuticals: Used as a base for ointments, creams, and lotions, and as a solvent in oral solutions. Polyethylene Glycol 400 (PEG 400) is a versatile, non-toxic, water-soluble polymer used in a wide range of industrial, pharmaceutical, and cosmetic applications. It is known for its ability to dissolve in water, making it an excellent solvent, plasticizer, and lubricant.