Description

Octadecyl 12-Hydroxyoctadecanoate is a high-purity, long-chain fatty acid ester derived from 12-hydroxystearic acid. This specialty chemical serves as a versatile intermediate and functional additive, prized for its unique combination of hydrophobic and hydroxyl-functional properties. It is particularly valuable for industrial formulators and manufacturers in the cosmetics, lubricants, and polymer industries seeking to modify surface characteristics, enhance stability, or impart specific rheological properties to their products.

Application

• Cosmetics & Personal Care: Acts as a high-performance emollient, viscosity modifier, and stabilizer in creams, lotions, lipsticks, and sunscreens.
• Lubricants & Greases: Functions as a synthetic base oil or a thickening agent, contributing to excellent lubricity, thermal stability, and water resistance.
• Polymer & Plastic Additives: Used as an internal or external lubricant and processing aid in PVC, polyolefins, and engineering plastics to improve flow and mold release.
• Coatings & Inks: Serves as a flow and leveling agent, as well as a matting agent, to enhance the finish and performance of industrial and decorative coatings.
• Textile & Fiber Treatment: Employed as a softening agent and water-repellent finish for natural and synthetic fibers.
• Adhesives & Sealants: Imparts flexibility, moisture resistance, and improved adhesion to various adhesive formulations.

Basic Information

Product Name	Octadecyl 12-Hydroxyoctadecanoate
CAS No.	36826-83-2
Molecular Formula	C₃₆H₇₂O₃
Molecular Weight	552.96 g/mol
Synonyms	Stearyl 12-Hydroxystearate; Octadecyl 12-Hydroxystearate; 12-Hydroxyoctadecanoic Acid Octadecyl Ester; 12-Hydroxystearic Acid Stearyl Ester; Hydroxystearic Acid Stearyl Ester; Loxiol G 21 (Trade Name); 12-HSA Stearyl Ester; Stearyl Hydroxystearate
EINECS	253-238-9

Quality Control

Our Octadecyl 12-Hydroxyoctadecanoate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure it meets precise specifications for identity, purity, and performance. A comprehensive Certificate of Analysis (COA) documenting assay, acid value, hydroxyl value, and other critical parameters is provided with every shipment to guarantee consistency and traceability for your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at ambient 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 (HPLC)	≥ 98.0%
Acid Value	≤ 2.0 mg KOH/g
Hydroxyl Value	90 - 110 mg KOH/g
Saponification Value	95 - 115 mg KOH/g
Melting Point	55 - 65 °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.