Description

Octadecanoic Acid, Ester With 1,2-Ethanediol is a high-purity chemical intermediate, specifically the monoester of stearic acid and ethylene glycol. This compound is valued for its role as a versatile building block and emulsifying agent in advanced formulations. It is primarily required by manufacturers in the cosmetics, personal care, and specialty chemical industries for producing high-performance lubricants, emulsifiers, and texture modifiers.

Application

• As a key intermediate in the synthesis of non-ionic surfactants and emulsifiers.
• Used as a viscosity modifier and lubricant in cosmetic and personal care formulations (e.g., creams, lotions).
• Acts as a processing aid and internal lubricant in polymer and plastic manufacturing.
• Serves as a raw material for producing textile softeners and finishing agents.
• Functions as a co-emulsifier and stabilizer in industrial and institutional cleaning products.
• Utilized in the formulation of release agents and mold lubricants.

Basic Information

Product Name	Octadecanoic Acid, Ester With 1,2-Ethanediol
CAS No.	37221-98-0
Molecular Formula	C₂₀H₄₀O₃
Molecular Weight	328.53 g/mol
Synonyms	Ethylene Glycol Monostearate; Glycol Monostearate; 2-Hydroxyethyl Octadecanoate; EGMS; Ethylene Glycol Stearate; Stearic Acid, 2-Hydroxyethyl Ester; 1,2-Ethanediol, Octadecanoate; GMS (commonly refers to glycerol monostearate, but EGMS is a related ester)
EINECS	253-408-6

Quality Control

Our Octadecanoic Acid, Ester With 1,2-Ethanediol is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for identity, purity, and performance. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed parameters.

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). Keep away from strong oxidizing agents and heat sources to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white waxy solid
Identification (IR)	Conforms to structure
Assay (GC or Titration)	≥ 98.0%
Acid Value	≤ 2.0 mg KOH/g
Saponification Value	170 - 185 mg KOH/g
Melting Point	55 - 60 °C
Heavy Metals (as Pb)	≤ 10 ppm

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