Description

12-Hydroxystearic Acid is a high-purity, hydroxylated fatty acid derivative of stearic acid. This compound is valued for its unique combination of hydrophobic and hydrophilic properties, making it a versatile intermediate and additive. It is essential for manufacturers in the cosmetics, lubricants, polymers, and specialty chemicals industries seeking to modify rheology, enhance stability, or introduce functional groups. Our supply is characterized by consistent quality and reliable global availability.

Application

• Cosmetics & Personal Care: Acts as a thickener, opacifier, and consistency regulator in creams, lotions, lipsticks, and deodorants.
• Lubricants & Greases: Used as a gelling agent and thickener in lithium-based and other complex greases, improving texture and water resistance.
• Polymer & Resin Modification: Serves as a key monomer for producing alkyd resins, polyesters, and other polymers, impacting flexibility and adhesion.
• Chemical Intermediate: Utilized in the synthesis of surfactants, emulsifiers, and other specialty chemicals due to its reactive hydroxyl and carboxyl groups.
• Coatings & Inks: Functions as a rheology modifier and dispersing agent to control flow and settling in formulations.
• Pharmaceutical Excipients: Employed in controlled-release formulations and as a tablet lubricant or binder component.

Basic Information

Product Name	12-Hydroxystearic Acid
CAS No.	36377-33-0
Molecular Formula	C₁₈H₃₆O₃
Molecular Weight	300.48 g/mol
Synonyms	12-Hydroxyoctadecanoic Acid; D-12-Hydroxystearic Acid; (+)-12-Hydroxystearic Acid; 12-HSA; Hydroxystearic Acid; 12-Hydroxy Stearic Acid; 12-Hydroxy-stearic acid; 12-Hydroxyoctadecanoic acid
EINECS	252-966-6

Quality Control

Our 12-Hydroxystearic Acid is produced and tested under a stringent quality management system. Each batch is analyzed to ensure it meets precise specifications for purity, identity, and physical properties. A comprehensive Certificate of Analysis (COA) documenting results for all critical parameters is provided with every shipment to guarantee traceability and compliance with your requirements.

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); keep the container tightly sealed to minimize exposure to atmospheric humidity.

Specification

Item	Specification
Appearance	White to off-white powder or flakes
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	74 - 78 °C
Acid Value	180 - 190 mg KOH/g
Hydroxyl Value	175 - 185 mg KOH/g
Iodine Value	≤ 2.0 g I₂/100g
Loss on Drying	≤ 1.0 %
Heavy Metals (as Pb)	≤ 10 ppm

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