Description

Pentaethylene Glycol Monohexadecyl Ether is a non-ionic surfactant belonging to the polyoxyethylene alkyl ether family, characterized by its hydrophilic pentaethylene glycol chain and a long hydrophobic hexadecyl (cetyl) tail. This amphiphilic structure is critical for its role in reducing surface tension and stabilizing interfaces in complex formulations. It serves as a key ingredient for manufacturers in the personal care, pharmaceutical, and specialty chemical industries requiring reliable emulsification, solubilization, and conditioning properties.

Application

• Primary emulsifier and stabilizer in cosmetic creams, lotions, and ointments.
• Solubilizing agent for fragrances, oils, and active pharmaceutical ingredients (APIs) in clear gels and solutions.
• Raw material for the synthesis of more complex specialty surfactants and polymerizable monomers.
• Wetting and dispersing agent in agrochemical formulations and industrial cleaning products.
• Conditioning and softening agent in hair care and fabric care products.
• Component in lubricant and metalworking fluid formulations for its surface-active properties.

Basic Information

Product Name	Pentaethylene Glycol Monohexadecyl Ether
CAS No.	4478-97-1
Molecular Formula	C₂₆H₅₄O₆
Molecular Weight	478.71 g/mol
Synonyms	Hexadecyl pentaethylene glycol ether; C16E5; Poly(oxy-1,2-ethanediyl), α-hexadecyl-ω-hydroxy- (5 EO); PEG-5 cetyl ether; Ceteth-5; 2-[2-[2-[2-[2-(Hexadecyloxy)ethoxy]ethoxy]ethoxy]ethoxy]ethanol; Pentaethylene glycol monooctadecyl ether (related); Nonionic surfactant C16E5
EINECS	Contact for details

Quality Control

Our Pentaethylene Glycol Monohexadecyl Ether is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure consistent purity, composition, and performance. Certificates of Analysis (COA) detailing specifications such as assay, ethylene oxide distribution, and residual solvents are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure containers are sealed after each use to prevent absorption of atmospheric moisture, which may affect product quality.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or semi-solid
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 1.0%
pH (5% solution)	5.0 - 7.0
Heavy Metals	< 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.