Pentaethylene Glycol | CAS 4792-15-8
High-Purity PEG-5 for Pharmaceutical, Polymer, and Electronics Applications
Product Overview
Pentaethylene Glycol (PEG-5, CAS 4792-15-8) is a linear polyether compound widely recognized for its excellent hydrophilicity, solvent compatibility, and chemical stability. As a key member of the polyethylene glycol (PEG) series, PEG-5 serves as a versatile intermediate in a variety of industries, including pharmaceuticals, personal care, polymers, and electronics.
Its five repeating ethylene oxide units give it unique physicochemical properties: PEG-5 is miscible with water and most polar organic solvents, has a relatively low viscosity, and maintains stability over a wide pH and temperature range. These characteristics make it especially useful in solubilization systems, coupling reactions, surfactant synthesis, and surface modification processes.
Chemlyte Solutions supplies PEG-5 with ≥98% purity, produced under GMP-like conditions, offering consistent quality and traceability. With full regulatory documentation and flexible batch sizes, our PEG-5 is trusted by R&D and production teams alike.
Technical Details
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Chemical Name: Pentaethylene Glycol
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CAS Number: 4792-15-8
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Synonyms: PEG-5; Poly(ethylene glycol) 200; 3,6,9,12,15-Pentaoxaheptadecane-1,17-diol
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Molecular Formula: C10H22O6
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Molecular Weight: 238.28 g/mol
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Appearance: Clear, colorless to pale yellow liquid
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Purity: ≥98.0%
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Solubility: Miscible with water, ethanol, acetone, and other polar solvents
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Storage: Store in tightly sealed containers away from strong oxidizing agents; ambient temperature
✅ Application Highlights
PEG-5 is used in numerous advanced formulations due to its low toxicity, high solubility, and non-volatility. Key advantages include:
✅ Solubilizing Agent: Enhances bioavailability of poorly soluble drugs—used in oral and topical pharma formulations.
✅ Polymer Building Block: Acts as a flexible spacer in polyurethanes, polyesters, and PEGylated materials.
✅ Surfactant Intermediate: Base molecule in the synthesis of nonionic surfactants for cosmetics and industrial cleaners.
✅ Electronics-Grade Solvent: Excellent compatibility with metal salts and polymers, suitable for inkjet printing and conductive pastes.
✅ Surface Functionalization: Used as a linker in surface modification and bioconjugation (e.g., silica coating, nanoparticles).
✅ Low Volatility & Low Toxicity: Environmentally friendly and safe to handle—ideal for formulations with user safety concerns.
Typical Uses
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Pharmaceutical solubilizers and excipients (oral liquids, ointments)
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Base material for PEG derivatives in cosmetic emulsions and lotions
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Spacer or hydrophilic chain in medical polymers and biomedical hydrogels
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Conductive ink formulations and microelectronics processing aids
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Intermediate for polymer surfactants, lubricants, and antistatic agents
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Functional additive in specialty resins and coatings
Packaging & Delivery
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Standard Packaging: 1 kg | 25 kg | 200 kg
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Custom Packaging: Available on request
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Documentation: COA, MSDS, TDS provided with each shipment
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Logistics: Global shipping support with fast lead times and export documentation
Why Chemlyte Solutions?
✅ Reliable source of high-purity PEGs across molecular weights
✅ ISO-like quality standards and flexible order volumes
✅ Strong supply chain support for R&D and scale-up
✅ Full regulatory compliance and transparent sourcing
✅ Technical assistance from formulation to process optimization
📩 Contact Chemlyte Solutions to request Pentaethylene Glycol (PEG-5) samples, pricing, or formulation support. Our team is ready to help optimize your production with high-performance polyether solutions.
