Pentaethylene Glycol Monobenzyl Ether CAS 57671-28-0

Pentaethylene Glycol Monobenzyl Ether CAS 57671-28-0 from Aure Chemical: Sourcing and Export Support

Pentaethylene Glycol Monobenzyl Ether, commonly known as Bn-PEG5-OH or Ph-PEG5-OH (CAS 57671-28-0), is a discrete polyethylene glycol derivative featuring five ethylene oxide units, a benzyl protecting group at one end, and a free terminal hydroxyl group. This structure provides a well-defined hydrophilic spacer suitable for precise molecular construction in fine chemical and research applications.

Aure Chemical supplies this specialty PEG derivative to customers engaged in pharmaceutical intermediate research, custom synthesis, and functional molecule development worldwide. We focus on consistent quality coordination and comprehensive documentation to support efficient global sourcing and export requirements.

Basic Information

CAS No.	57671-28-0
EC No.	Not available
Linear Formula	C17H28O6
Molecular Weight	328.41 g/mol
Appearance	White to yellow to green clear liquid
Melting Point	Not available (typical reference)
Boiling point	Not available (typical reference)
Density	1.10 g/mL at 20 °C (lit.)
Solubility	Soluble in DMSO, DCM, DMF and polar organic solvents
Storage Conditions	Keep in a tightly closed container in a cool, dry and well-ventilated place. Protect from moisture and light. Recommended storage temperature below 15°C.
Chemical Structure

Key Applications

• PEG linker intermediate: Functions as a defined hydrophilic pentaethylene glycol spacer for constructing functional linkers in bioconjugation and drug delivery research.

• Molecular linker intermediate: Enables controlled incorporation of PEG5 units into complex organic structures during functional molecule construction and advanced synthesis.

• Hydrophilic spacer: Provides extended hydrophilic character to enhance solubility and spatial properties in specialty chemical and research compound design.

• Fine chemical intermediate: Used in the preparation of PEGylated specialty materials and pharmaceutical intermediates requiring precise polyether chain length.

• Laboratory research: Applied in medicinal chemistry studies and custom synthesis projects involving benzyl-protected PEG5 derivatives with reactive terminal hydroxy group.

Sourcing Pentaethylene Glycol Monobenzyl Ether with Aure Chemical

• Consistent product quality: High-purity specifications exceeding 95% by GC with reliable batch consistency suitable for demanding research and fine chemical applications.

• Flexible global supply: Support for laboratory samples, pilot-scale quantities, and bulk orders through established export logistics and international channels.

• SDS and COA support: Full documentation package including Safety Data Sheets and Certificates of Analysis provided to meet quality review and procurement requirements.

• Packaging and technical service: Customized liquid packaging options together with responsive technical communication for sourcing specifications and order coordination.

Packaging and Storage

• Packaging: Supplied in small laboratory quantities such as 1 g and 5 g bottles with options for larger liquid containers including HDPE drums. Customized packaging available upon request for specific volumes and requirements.

• Storage: Store in tightly closed containers in a cool, dry, and well-ventilated area. Recommended storage temperature is room temperature or below 15°C, protected from moisture and light.

• Handling of opened containers: Minimize exposure to air and moisture after opening. Reseal containers tightly and use contents promptly to maintain product integrity.

• Bulk supply: Flexible arrangements supported for pilot and commercial bulk procurement with suitable liquid packaging configurations matched to order quantity.

Safety and Handling

• General handling: Handle according to good laboratory and industrial hygiene practices. Avoid inhalation, ingestion, and direct contact with skin or eyes.

• Personal protection: Wear suitable protective equipment including chemical-resistant gloves, safety goggles, and protective clothing. Ensure adequate ventilation in the work area.

• Documentation review: Consult the latest Safety Data Sheet (SDS) before handling, storage, transportation, or use of the product.

• Compatibility: Incompatible with strong oxidizing agents, strong acids, and strong bases. Perform compatibility assessment prior to use with other materials.