Description

Dihydroxyoctadecanoic Acid is a high-purity, long-chain fatty acid derivative characterized by its two hydroxyl groups. This unique bifunctional structure makes it a valuable intermediate for synthesizing specialized polymers, surfactants, and lubricants where enhanced hydrophilicity and reactivity are required. It is primarily utilized by manufacturers in the chemical, personal care, and pharmaceutical industries seeking to develop advanced materials with tailored properties.

Application

• Polymer & Resin Synthesis: As a monomer or cross-linking agent for producing polyesters, alkyd resins, and other specialty polymers.
• Surfactant & Emulsifier Production: Serving as a key raw material for manufacturing non-ionic and anionic surfactants with good emulsifying properties.
• Lubricant & Grease Additive: Used to formulate synthetic esters and additives that improve lubricity and thermal stability.
• Personal Care Ingredients: Employed in the synthesis of emollients and conditioning agents for cosmetics and skincare products.
• Pharmaceutical Intermediates: Acts as a building block in the synthesis of certain active pharmaceutical ingredients (APIs) and prodrugs.
• Corrosion Inhibitors: Incorporated into formulations designed to protect metal surfaces in industrial applications.

Basic Information

Product Name	Dihydroxyoctadecanoic Acid
CAS No.	26248-43-1
Molecular Formula	C₁₈H₃₆O₄
Molecular Weight	316.48 g/mol
Synonyms	9,10-Dihydroxyoctadecanoic Acid; 9,10-Dihydroxystearic Acid; DHSA; Octadecanoic acid, 9,10-dihydroxy-; Thapsic Acid (Note: Thapsic acid typically refers to hexadecanedioic acid, but is sometimes incorrectly used); 9,10-DHSA; 9,10-Dihydroxy C18 Acid
EINECS	247-562-6

Quality Control

Our Dihydroxyoctadecanoic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for identity, purity, and composition. A Certificate of Analysis (COA) detailing all test results 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 a controlled room temperature (15-25°C). Due to its hygroscopic and easily oxidized nature, the container must be kept tightly sealed after each use to minimize exposure to moisture and air. For long-term storage, consider using an inert atmosphere (e.g., nitrogen purge).

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	130 - 135 °C
Loss on Drying	≤ 1.0 %
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1 %

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