Description

Stearoxylic Acid CAS NO 656-73-5 is a high-purity, long-chain fatty acid derivative with significant industrial utility. This compound serves as a versatile intermediate and functional additive, valued for its chemical reactivity and ability to modify material properties. It is essential for manufacturers in the polymer, lubricant, and specialty chemical industries seeking to enhance product performance and stability.

Application

• As a key monomer or co-monomer in the synthesis of specialty polyesters and polyamides for coatings and engineering plastics.
• An intermediate in the production of lubricant additives, such as esters and amides, to improve viscosity and thermal stability.
• Used in the formulation of plasticizers and stabilizers for PVC and other polymer systems.
• As a raw material for manufacturing corrosion inhibitors and metalworking fluid components.
• In the synthesis of surfactants and emulsifiers for industrial and agrochemical applications.
• As a building block for pharmaceutical intermediates and fine chemicals requiring specific fatty acid chains.

Basic Information

Product Name	Stearoxylic Acid
CAS No.	656-73-5
Molecular Formula	C₁₈H₃₄O₃
Molecular Weight	298.46 g/mol
Synonyms	9,10-Epoxystearic Acid; 9,10-Epoxy-18-hydroxyoctadecanoic Acid; 9,10-Epoxyoctadecanoic Acid; 9,10-Epoxystearic Acid; 18-Hydroxy-9,10-epoxyoctadecanoic Acid; Epoxystearic Acid; Oxiraneoctadecanoic Acid
EINECS	211-488-5

Quality Control

Our Stearoxylic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including assay, impurity profiling, and identity confirmation, to ensure it meets precise specifications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and consistency.

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 nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect product quality.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	95 - 105 °C
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.