Description

Hexadecanedioic Acid is a long-chain dicarboxylic acid, also known as Thapsic Acid, with the CAS registry number 505-54-4. This high-purity intermediate is valued for its role in synthesizing high-performance polymers, specialty esters, and fine chemicals. It is essential for manufacturers in the polymer, lubricant, and pharmaceutical industries seeking to develop products with enhanced thermal stability and specific functional properties.

Application

• Polymer Synthesis: A key monomer for producing specialty polyamides (nylons), polyesters, and other condensation polymers requiring long-chain flexibility and thermal resistance.
• Lubricant & Grease Formulation: Used in the synthesis of complex esters that serve as high-performance synthetic lubricant base stocks and grease thickeners.
• Fine Chemical Intermediate: Serves as a versatile building block in organic synthesis for pharmaceuticals, agrochemicals, and fragrances.
• Corrosion Inhibitors: Employed in the production of metalworking fluids and corrosion inhibitor packages.
• Plasticizer Production: A precursor for certain polymeric plasticizers that offer low volatility and good compatibility with PVC and other resins.
• Adhesive & Coating Resins: Contributes to the properties of alkyd resins and other coating materials, improving flexibility and durability.

Basic Information

Product Name	Hexadecanedioic Acid
CAS No.	505-54-4
Molecular Formula	C16H30O4
Molecular Weight	286.41 g/mol
Synonyms	Thapsic Acid; 1,16-Hexadecanedioic Acid; Hexadecane-1,16-dioic Acid; Tetradecane-1,14-dicarboxylic Acid; C16 Dicarboxylic Acid; DCA16; 1,14-Tetradecanedicarboxylic Acid
EINECS	208-010-9

Quality Control

Our Hexadecanedioic Acid is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including assay, identification, and impurity profiling, to ensure it meets precise specifications. A Certificate of Analysis (COA) detailing purity, physical characteristics, and test results is provided with each shipment and is available upon request.

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); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	122 - 126 °C
Loss on Drying	≤ 1.0 %
Heavy Metals (as Pb)	≤ 20 ppm

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