Description

9-Hydroxystearic Acid is a versatile hydroxylated fatty acid derivative, valued for its bifunctional chemical structure which provides both a carboxylic acid and a hydroxyl group for diverse synthetic modifications. This compound is essential for formulators and researchers seeking to develop specialty chemicals with enhanced properties like hydrophilicity, adhesion, or biodegradability. It finds significant demand across industries including polymer additives, lubricant synthesis, cosmetics, and as a key intermediate in pharmaceutical and agrochemical manufacturing.

Application

• Polymer & Resin Modification: Acts as a monomer or additive to introduce flexibility, hydrophilicity, or biodegradability into polyesters, alkyd resins, and polyurethanes.
• Lubricant & Grease Formulation: Serves as a precursor for synthetic esters used in high-performance, biodegradable lubricants and metalworking fluids.
• Cosmetic & Personal Care Ingredients: Utilized in the synthesis of emulsifiers, emollients, and viscosity modifiers for creams, lotions, and makeup products.
• Pharmaceutical Intermediates: A key building block in the synthesis of bioactive molecules and prodrugs due to its metabolically relevant fatty acid structure.
• Agrochemical Synthesis: Employed in the production of specialized surfactants, adjuvants, and active ingredient carriers for crop protection formulations.
• Surface Coatings & Inks: Used to modify the properties of coatings, improving adhesion, gloss, and resistance properties.
• Research & Development: A valuable standard and reagent in organic synthesis and biochemical research for studying lipid metabolism and modification.

Basic Information

Product Name	9-Hydroxystearic Acid
CAS No.	3384-24-5
Molecular Formula	C₁₈H₃₆O₃
Molecular Weight	300.48 g/mol
Synonyms	9-Hydroxyoctadecanoic Acid; (+/-)-9-Hydroxystearic Acid; DL-9-Hydroxystearic Acid; 9-Hydroxy Stearic Acid; 9-HSA; Octadecanoic acid, 9-hydroxy-; 9-Hydroxy C18 Acid; Hydroxylated Stearic Acid
EINECS	222-194-8

Quality Control

Our 9-Hydroxystearic Acid is manufactured under a stringent quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for identity, purity, and composition. Certificates of Analysis (COA) documenting results for key parameters such as assay, melting point, and impurity profile are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which may affect product quality.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	78°C - 82°C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm

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