Octylamine OA Primary octyl amine CAS 111-86-4
- CAS: 111-86-4
- Synonyms: n-Octylamine; 1-Octanamine; Caprylamine; Primary octyl amine; OA
- EINECS No.: 203-916-0
- Molecular Formula: C₈H₁₉N
- Grade: Industrial Grade
- Packaging: 160 kg drum
Tree Chem Octylamine (OA) is produced through catalytic amination and refined by vacuum distillation to achieve high purity and low moisture content. As a primary amine with an eight-carbon chain, it combines chemical activity with hydrophobic properties, making it suitable for emulsifiers, textile auxiliaries, lubricant additives, and metal treatment chemicals.
We manufacture and supply Octylamine in stable 160 kg drum packaging, ensuring reliable quality, safe transportation, and documentation support. For technical or commercial information, please contact info@cntreechem.com.
Specification
Basic Information
| Parameter | Value |
| Product Name | Octylamine |
| Abbreviation | OA |
| CAS No. | 111-86-4 |
| EINECS No. | 203-916-0 |
| Molecular Formula | C₈H₁₉N |
| Molecular Weight | 129.24 |
| Appearance | Colorless to pale yellow liquid |
| Synonyms | n-Octylamine; 1-Octanamine; Primary octyl amine; Caprylamine; OA |
| Packaging | 160 kg steel drum |
Technical Specification
| Item | Specification |
| Appearance | Liquid |
| Assay | ≥99% |
| Color | ≤30 APHA |
| Water | ≤0.3% |
Applications
Pharmaceutical Industry
- n-Octylamine is employed to build chiral auxiliaries and resolution agents that raise optical purity while simplifying water-phase operations in analgesic API routes. It enables formation of N-octyl-D-glucosamine–type reagents that deliver high enantiomeric excess in the separation of profen-class drug intermediates.
- Beyond chiral resolution, n-Octylamine participates as an amine side chain in the preparation of local anesthetics and salt forms that tune solubility and crystallization behavior, improving downstream filtration and drying efficiency in dosage manufacturing.
Agrochemical Industry
- n-Octylamine serves as a key amine for synthesizing preservative and fungistatic components used in seed treatments and post-harvest protection, supporting storage stability and mold control under humid logistics conditions.
- In insecticide systems, n-Octylamine is transformed to synergists that amplify pyrethroid effectiveness without materially increasing mammalian toxicity, and it contributes to thiocarbamate-type structures that broaden pest-control spectra.
Surfactants and Specialty Chemicals
- n-Octylamine is a primary feedstock for quaternary ammonium salts used as conditioning, antistatic, and biocidal agents in personal-care and hard-surface formulations, providing cationic charge density with good wetting on low-energy substrates.
- Through ethoxylation or amidation, n-Octylamine yields nonionic and amphoteric surfactants that combine emulsifying power with alkaline and electrolyte tolerance, improving detergency, dispersion, and formulation compatibility in cleaners and emulsifiable concentrates.
Metalworking and Corrosion Control
- n-Octylamine and its salts act as alkaline buffers and film-forming inhibitors in synthetic and semi-synthetic cutting fluids, enhancing rust protection under hard-water conditions while preserving lubricity and low foam.
- Reaction products of n-Octylamine with sulfur–phosphorus donors function as antiwear and extreme-pressure additives that reinforce boundary films on steel, extending tool life and improving finish in high-load machining.
Oilfield and Refining Chemicals
- n-Octylamine contributes to acidizing corrosion-inhibitor packages that protect tubulars in HCl and mixed-acid jobs at elevated temperatures, forming adherent organic films that suppress uniform and localized attack.
- In refining and petrochemical units, n-Octylamine is used for neutralization and as a building block in catalyst-adjacent auxiliaries, aiding impurity control and stabilizing product quality during hydrotreating and cracking operations.
Rubber and Polymer Processing
- n-Octylamine functions as a vulcanization accelerator and activator that shortens cure time and increases crosslink density, improving tensile properties and heat aging performance in both natural and synthetic rubbers.
- In thermoplastics, n-Octylamine–derived additives act as antistatic and process-aid components that reduce melt viscosity and improve die release, supporting stable extrusion and molding at industrial throughputs.
Textiles, Paper, and Coatings
- Quaternized n-Octylamine derivatives serve as fiber softeners and antistats that enhance hand feel and dye-leveling uniformity on synthetic fabrics, maintaining performance after repeated laundering.
- In paper and coating systems, n-Octylamine–based agents improve pigment dispersion, water resistance, and surface smoothness, while amine salts help manage foam and wetting across coating heads and calendering steps.
Emerging and High-Tech Uses
- n-Octylamine appears in electronics as a functional amine for liquid-crystal materials and photoresist auxiliaries, where controlled basicity and hydrophobicity support film uniformity and device reliability.
- In energy materials, n-Octylamine–derived species are explored as electrolyte or interface modifiers that enhance wettability and stability, aligning with the move toward high-performance batteries and specialty polymers.
Storage & Handling
- Store in cool, dry, and well-ventilated areas.
- Keep away from open flames and strong oxidizing agents.
- Use airtight, corrosion-resistant containers.
- Handle under inert atmosphere if stored long term.
- Avoid prolonged skin or eye contact — use protective gloves and goggles.
Usage Notice
- Operate in ventilated environments to avoid vapor accumulation.
- Prevent contact with acids and halogenated compounds.
- In case of leakage, absorb with inert materials and ventilate the area.
- Dispose of waste according to local environmental and safety standards.
- Always wear appropriate PPE when handling concentrated amines.
- Chiral resolution of Naproxen: N-octyl-D-glucosamine prepared in situ from n-Octylamine and D-glucose (≈1:1.2 mol) serves as the aqueous-phase resolving agent to isolate high-ee Naproxen intermediates.
- OIT preservative synthesis: n-Octylamine is converted through the isothiazolinone route to N-octylisothiazolinone, furnishing a broad-spectrum biocidal component for coatings and adhesives.
- Pyrethroid synergist system: n-Octylamine reacts with bicycloheptene dicarboxylic derivatives to form N-octyl bicycloheptene dicarboximide that elevates pyrethroid insecticidal efficacy in finished formulations.
- Cationic surfactant quaternization: n-Octylamine is quaternized with alkyl halides at controlled temperature to give octyl quaternary ammonium salts that act as antistatic, softening, and disinfecting actives.
- Semi-synthetic cutting fluid: base oil and water with 1.5–15% n-Octylamine as the alkaline component deliver buffering and corrosion-inhibiting films on ferrous surfaces during machining.
- Acidizing corrosion inhibitor: n-Octylamine condensed with carbonyl compounds (Mannich-type) provides adsorption-driven protection layers that suppress steel corrosion under strong-acid treatments.
- Rubber vulcanization aid: n-Octylamine introduced into sulfur cure packages functions as an accelerator–activator that increases crosslink efficiency and shortens scorch and cure times.
- Textile softener: quaternized n-Octylamine incorporated into finishing baths imparts durable softness and antistatic control on polyester and blends without compromising dye shade.
Packaging
- 160 kg steel drum
- Custom packaging available upon request



