Description

Octadecanoic Acid 3-Hydroxypropyl Ester is a high-purity fatty acid ester derived from stearic acid, known for its excellent emollient and lubricating properties. This versatile chemical intermediate is crucial for formulators seeking to enhance the texture, stability, and performance of a wide range of industrial and consumer products. It is primarily utilized by manufacturers in the personal care, cosmetics, plastics, and lubricant industries.

Application

This ester's unique structure makes it a valuable ingredient across multiple sectors. Key application areas include:

• Personal Care & Cosmetics: Acts as a premium emollient, skin-conditioning agent, and viscosity modifier in creams, lotions, and makeup products.
• Plastic & Polymer Industry: Serves as an internal and external lubricant and processing aid in PVC, polyolefins, and engineering plastics to improve flow and mold release.
• Lubricants & Greases: Functions as a synthetic base oil or additive component, offering good lubricity and thermal stability.
• Textile & Fiber Processing: Used as a softening agent, spin finish, and lubricant for synthetic fibers and yarns.
• Coatings & Inks: Imparts slip and rub resistance, and acts as a flow control agent in various coating formulations.
• Food Contact Materials: Employed as a lubricant and release agent in the production of plastics intended for food packaging (subject to compliance).

Basic Information

Product Name	Octadecanoic Acid 3-Hydroxypropyl Ester
CAS No.	10108-23-3
Molecular Formula	C21H42O3
Molecular Weight	342.56 g/mol
Synonyms	3-Hydroxypropyl stearate; Stearic acid 3-hydroxypropyl ester; Propane-1,3-diol monostearate; Hydroxypropyl stearate; 1-Stearoyloxy-3-propanol; Octadecanoic acid, 3-hydroxypropyl ester; Glyceryl 1-stearate (related); Loxiol G 10 (trade name example)
EINECS	233-304-4

Quality Control

Our Octadecanoic Acid 3-Hydroxypropyl Ester is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and performance. Certificates of Analysis (COA) documenting key parameters such as assay, acid value, hydroxyl value, and color 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, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and heat sources.

Specification

Item	Specification
Appearance	White to off-white waxy solid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Acid Value	≤ 2.0 mg KOH/g
Hydroxyl Value	155 - 175 mg KOH/g
Saponification Value	160 - 175 mg KOH/g
Color (APHA)	≤ 100
Melting Point	50 - 55 °C

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