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Specifications
|
Appearance |
Off-white to gray solid |
|
Purity (HPLC) |
98% min |
|
Identification |
The HNMR spectrum conforms to structure |
|
Melting Point |
122-130 °C |
|
Water |
1% max |
|
Residue on Ignition |
0.5% max |
|
Loss on Drying |
1.0% max |
Applications of Octadecanedioic acid丨CAS 871-70-5
1. Polymer and Resin Industry
● Used as a monomer or co-monomer in the synthesis of polyesters, polyamides, and polyurethanes.
● Provides flexibility and durability to polymers due to its long alkyl chain and terminal carboxyl groups.
● Utilized in the manufacture of biodegradable polymers and specialty plastics.
2. Lubricants and Surfactants
● Octadecanedioic acid丨CAS 871-70-5 acts as a raw material for the production of lubricant additives and surface-active agents.
● Its dicarboxylic nature allows it to function as a corrosion inhibitor and stabilizer in lubricant formulations.
3. Cosmetics and Personal Care
● Incorporated in formulations as an emollient, pH adjuster, or conditioning agent.
● Its fatty acid properties contribute to skin-softening and moisturizing effects.
4. Pharmaceutical and Biomedical Use
● Explored as a building block in drug delivery systems and biocompatible materials.
● Used in synthesis of prodrugs or bioactive polymers for controlled release applications.
5. Chemical Intermediates
● Serves as a precursor in organic synthesis for producing specialty chemicals, including plasticizers, adhesives, and coatings.
● Its dicarboxylic acid groups allow for crosslinking and derivatization reactions.
Benefits
1. Biodegradability
● As a long-chain dicarboxylic acid derived from fatty acid chemistry, it is often biodegradable and environmentally friendly, making it suitable for sustainable materials development.
2. Improved Polymer Properties
● Incorporation of octadecanedioic acid into polymers enhances mechanical strength, flexibility, and thermal stability due to its long aliphatic chain.
3. Versatile Functional Groups
● The two terminal carboxyl groups enable diverse chemical modifications, allowing tailored synthesis for specific industrial applications.
4. Compatibility
● Compatible with various polymerization methods and additives, facilitating broad industrial use in plastics, coatings, and lubricants.
Conclusion
Octadecanedioic acid丨CAS 871-70-5 is a valuable long-chain dicarboxylic acid widely used as a monomer, chemical intermediate, and functional additive across industries such as polymer synthesis, lubricants, cosmetics, and pharmaceuticals. Its biodegradable nature and functional versatility make it especially important in the development of eco-friendly materials and specialty chemicals, supporting innovation in sustainable industrial chemistry.

