Description

Polyoxy(Methyl-1,2-Ethanediyl), .Alpha.-(1-Oxooctadecyl)-.Omega.-Hydroxy- is a nonionic surfactant and emulsifier belonging to the class of polyethylene glycol stearates. This compound is valued for its ability to stabilize formulations and modify the surface properties of materials across diverse industrial processes. It is a critical raw material for manufacturers in the personal care, pharmaceutical, and specialty chemical sectors seeking reliable emulsification and dispersion performance.

Application

• Cosmetics & Personal Care: Acts as a primary emulsifier and opacifier in creams, lotions, and ointments, providing stable, elegant textures.
• Pharmaceutical Formulations: Used as an excipient in topical drug delivery systems, including creams and emulsions, to enhance stability and bioavailability.
• Industrial Emulsions: Serves as an emulsifying agent in the production of polymer emulsions, textile finishes, and leather processing chemicals.
• Food Processing (where compliant): Functions as an emulsifier and dispersant in certain food-grade industrial applications and packaging material coatings.
• Agricultural Adjuvants: Incorporated into pesticide and herbicide formulations to improve spreading, wetting, and adhesion on plant surfaces.
• Lubricants & Release Agents: Employed as a component in synthetic lubricants and mold release agents for plastics and rubber manufacturing.

Basic Information

Product Name	Polyoxy(Methyl-1,2-Ethanediyl), .Alpha.-(1-Oxooctadecyl)-.Omega.-Hydroxy-
CAS No.	25190-52-7
Molecular Formula	CnH2n+2Ox (Polyethylene glycol monostearate) - Contact for details
Molecular Weight	Variable (depends on ethylene oxide chain length) - Contact for details
Synonyms	PEG Monostearate; Polyethylene Glycol Monostearate; Polyoxyethylene Monostearate; PEG Stearate; Poly(oxy-1,2-ethanediyl), .alpha.-(1-oxooctadecyl)-.omega.-hydroxy-; Ethoxylated Stearic Acid; POE Monostearate; Myrj 45; Myrj 49; Myrj 52
EINECS	246-705-9

Quality Control

Our Polyoxy(Methyl-1,2-Ethanediyl), .Alpha.-(1-Oxooctadecyl)-.Omega.-Hydroxy- is produced under a strict quality management system. Each batch is tested to ensure it meets specifications for critical parameters such as saponification value, hydroxyl value, acid value, and melting point. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance and regulatory compliance needs.

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 material is hygroscopic (moisture-sensitive); ensure containers are kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	White to off-white waxy solid
Identification (IR)	Conforms
Assay (by Saponification Value)	Contact for details
Acid Value	≤ 2.0 mg KOH/g
Hydroxyl Value	Contact for details
Melting Point	Contact for details
Water Content	≤ 1.0 %

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