Octadecanedioic acid (CAS No. 871-70-5) is an 18-carbon long-chain dicarboxylic acid, produced industrially via bio-fermentation.Octadecanedioic acid is an important intermediate used in the synthesis of pharmaceuticals, especially semaglutide and octadecanedioic acid mono-tert-butyl ester.

1. Serves as key intermediate for long‑chain peptide drug synthesis.
2. Acts as polymerization monomer for high‑performance long‑chain polyamides.
3. Applied in hot‑melt adhesives to improve flexibility and bonding strength.
4. Used as additive for synthetic lubricants and metal‑working fluids.
5. Utilized in powder coatings to enhance coating toughness and corrosion resistance.

- Packaging Options
- Industrial Grade: 25 kg net weight per woven-plastic bag lined with PE bag, moisture-proof and dust-proof.
- Bulk Order: Customized packaging solutions (e.g., 500 kg / 1000 kg FIBC bags) available to meet large-scale procurement needs.
- Storage Requirements
Store in a cool, dry, and well-ventilated warehouse, away from direct sunlight, heat sources, and incompatible substances (e.g., strong oxidizers, bases).
Shelf life is 24 months when stored under recommended conditions.
- Handling Precautions
Wear protective gloves and goggles during operation to avoid direct contact with skin and eyes. In case of accidental contact, rinse thoroughly with plenty of water and seek medical advice if necessary.