Description

Octadecanedioic Acid is a high-purity, long-chain dicarboxylic acid with the CAS registry number 871-70-5. This compound serves as a versatile and valuable building block in advanced polymer synthesis and specialty chemical manufacturing. It is essential for industries requiring high-performance materials with specific thermal and mechanical properties, such as premium polyamides (nylon), polyesters, lubricants, and corrosion inhibitors.

Application

• Polymer Intermediate: A key monomer for synthesizing high-performance, long-chain polyamides (Nylon 18,18) and polyesters with excellent flexibility and chemical resistance.
• Lubricant & Grease Additive: Used in the formulation of synthetic lubricants and greases to enhance viscosity index, thermal stability, and lubricity.
• Corrosion Inhibitor: Employed in the production of metalworking fluids and coatings to provide effective corrosion protection.
• Powder Coating Resins: Acts as a modifier in powder coating formulations to improve flow, flexibility, and durability of the final finish.
• Adhesive & Sealant Raw Material: Incorporated into hot-melt adhesives and sealants to adjust melting point and enhance adhesion properties.
• Pharmaceutical & Cosmetic Intermediates: Serves as a precursor in the synthesis of certain active pharmaceutical ingredients (APIs) and cosmetic esters.
• Plasticizer: Functions as a polymeric plasticizer for PVC and other resins, offering low volatility and good permanence.
• Research & Development: Utilized in chemical R&D for creating novel dendritic polymers, macrocyclic compounds, and other specialty materials.

Basic Information

Product Name	Octadecanedioic Acid
CAS No.	871-70-5
Molecular Formula	C₁₈H₃₄O₄
Molecular Weight	314.46 g/mol
Synonyms	1,18-Octadecanedioic Acid; Octadecane-1,18-dioic Acid; 1,16-Hexadecanedicarboxylic Acid; Long-chain C18 Dicarboxylic Acid; C18 Diacid
EINECS	212-817-5

Quality Control

Our Octadecanedioic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and physical properties. Certificates of Analysis (COA) documenting key parameters are provided with every shipment to guarantee traceability and batch-to-batch consistency for your critical processes.

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 product is hygroscopic (moisture-sensitive). Keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture, which may affect product quality.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	123 - 127 °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.