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1-Octanamine is a linear eight-carbon primary aliphatic amine with reactive amino functionality and a hydrophobic alkyl chain.
1-Octanamine functions as a chemical intermediate for surfactants, ammonium salts, corrosion-control additives, flotation reagents, and functional organic derivatives.
1-Octanamine is used in industrial synthesis, coatings, mineral processing, surface modification, nanomaterials research, and specialty chemical development.
CAS Number: 111-86-4
EC Number: 203-916-0
Molecular Formula: C₈H₁₉N
Molecular Weight: 129.24 g/mol
SYNONYMS
1-Octanamine, Octan-1-amine, Octylamine, n-Octylamine, N-Octylamine, 1-Octylamine, 1-Aminooctane, Octanamine, Caprylamine, Caprylylamine, Monooctylamine, Mono-n-Octylamine, n-Octanamine, Normal Octylamine, Normal Octanamine, Linear Octylamine, Linear C8 Amine, Straight-Chain Octylamine, Straight-Chain C8 Amine, Primary Octylamine, Primary C8 Amine, C8 Primary Amine, C8 Alkylamine, Octyl Primary Amine, Saturated C8 Amine, Aliphatic C8 Amine, Long-Chain Primary Amine, Medium-Chain Alkylamine, Octane-1-Amine, 1-Octaneamine, Octyl Amine, n-Octyl Amine, Octylammonia Base, Octylamine Free Base, Octylamine Liquid, Technical-Grade Octylamine, High-Purity Octylamine, Industrial Octylamine, Synthetic Octylamine, Octylamine Intermediate, Octylamine Surfactant Intermediate, Octylamine Corrosion-Inhibitor Intermediate, Octylamine Flotation Reagent, Octylamine Functionalization Reagent, Octylamine Chemical Intermediate, Octylamine Research Reagent, CAS 111-86-4, EC 203-916-0, EINECS 203-916-0, PubChem CID 8143, C₈H₁₉N, CH₃(CH₂)₇NH₂
APPLICATIONS
1-Octanamine serves as a reactive intermediate for manufacturing cationic, nonionic, and amphiphilic surface-active substances.
1-Octanamine provides a C8 hydrophobic chain and a nucleophilic primary amino group that can be chemically modified.
1-Octanamine supports the production of octylammonium salts through neutralization with suitable organic or inorganic acids.
1-Octanamine salts can provide altered water compatibility, surface activity, melting behavior, and processing characteristics.
1-Octanamine functions as a starting material for selected quaternary ammonium compounds.
1-Octanamine derivatives can be evaluated as surfactants, phase-transfer agents, antistatic additives, emulsifiers, and specialty formulation ingredients.
1-Octanamine contributes to the synthesis of alkylamine oxides after controlled oxidation of suitable amine derivatives.
1-Octanamine-derived amine oxides can provide wetting, foam modification, detergency, or interfacial activity depending on molecular structure.
1-Octanamine supports alkoxylation reactions used to produce ethoxylated or propoxylated amine derivatives.
1-Octanamine alkoxylates can be tailored for emulsification, wetting, dispersion, solubilization, and surface-modification applications.
1-Octanamine can be evaluated as a corrosion-inhibitor component in compatible aqueous, saline, or solvent-containing systems.
1-Octanamine adsorbs through its amino group while its alkyl chain can increase hydrophobic character at a metal interface.
1-Octanamine supports vapor-phase corrosion-inhibitor research for temporary protection of steel, copper, brass, and related metal surfaces.
1-Octanamine suitability depends on volatility, packaging design, metal type, humidity, contaminant level, dosage, and exposure duration.
1-Octanamine functions in metal-surface treatment research where adsorption of an organic amine is used to modify wettability or corrosion behavior.
1-Octanamine requires application-specific testing because adsorption strength and protection vary with alloy composition and surface condition.
1-Octanamine contributes reactive amine functionality to selected epoxy-resin formulations and laboratory curing studies.
1-Octanamine can open epoxy rings but its monofunctional structure can limit network growth or modify crosslink density.
1-Octanamine can be evaluated as a reactive chain modifier in epoxy systems requiring controlled hydrophobicity or reduced functionality.
1-Octanamine dosage must be carefully controlled because excessive monofunctional amine can reduce hardness, heat resistance, and chemical resistance.
1-Octanamine serves as a reactant with isocyanates for preparing substituted ureas and hydrophobic nitrogen-containing derivatives.
1-Octanamine-isocyanate reactions require strict moisture, temperature, stoichiometry, ventilation, and exotherm control.
1-Octanamine functions as an intermediate for preparing N-octyl amides through reaction with activated carboxylic acids or suitable derivatives.
1-Octanamine-derived amides can be evaluated in lubricants, surfactants, coatings, waxes, dispersants, and specialty organic materials.
1-Octanamine contributes to the synthesis of imidazoline, amidine, and other nitrogen-containing compounds after suitable multistep reactions.
1-Octanamine introduces a hydrophobic octyl group that can modify adsorption, solubility, and interfacial behavior.
1-Octanamine can be evaluated as a cationic collector or collector intermediate in mineral-flotation systems.
1-Octanamine protonation state, dosage, pH, mineral surface, dissolved salts, and froth conditions determine flotation selectivity.
1-Octanamine supports surface modification of silica, silicate minerals, clays, and oxidized inorganic particles.
1-Octanamine can increase hydrophobicity when the amino head group interacts with an appropriate mineral surface.
1-Octanamine functions as an intermediate for pigment wetting agents and dispersant molecules.
1-Octanamine-derived materials can modify compatibility between inorganic particles and hydrophobic resin or solvent phases.
1-Octanamine contributes to covalent functionalization of graphene oxide and related oxygen-containing carbon materials.
1-Octanamine introduces hydrophobic alkyl functionality that can improve dispersion in selected organic matrices and reduce water affinity.
1-Octanamine supports experimental corrosion-resistant graphene-based coatings after chemical attachment to reactive surface groups.
1-Octanamine-functionalized graphene oxide has been investigated as a hydrophobic barrier for reducing chloride penetration.
1-Octanamine functions as a ligand, capping reagent, or surface modifier in selected nanoparticle synthesis and dispersion studies.
1-Octanamine can influence particle growth, aggregation, surface energy, organic-phase compatibility, and colloidal stability.
1-Octanamine contributes to modification of layered silicates and other charged inorganic materials through adsorption or ion-exchange-derived processes.
1-Octanamine-treated mineral surfaces can be evaluated for compatibility with polymers, coatings, adhesives, and composite matrices.
1-Octanamine supports development of emulsifiers and wetting agents through salt formation, alkoxylation, amidation, or quaternization.
1-Octanamine derivatives can be designed to balance hydrophilic head-group behavior with the hydrophobic C8 alkyl chain.
1-Octanamine functions as an intermediate for antistatic, textile-treatment, and fiber-surface additives.
1-Octanamine-derived cationic substances require testing for fabric compatibility, yellowing, durability, aquatic impact, and regulatory acceptance.
1-Octanamine can be used as a building block for antimicrobial or preservative-related research compounds.
1-Octanamine itself should not be represented as an approved biocide unless the exact use, concentration, jurisdiction, and authorization support that claim.
1-Octanamine serves as an intermediate in agrochemical and specialty-organic synthesis where an N-octyl substituent is required.
1-Octanamine agrochemical use requires evaluation of reaction purity, residual amine, environmental fate, toxicology, and product authorization.
1-Octanamine supports pharmaceutical and biochemical research involving hydrophobic amine-containing molecular structures.
1-Octanamine is not automatically suitable as a pharmaceutical ingredient and requires complete purity, safety, efficacy, and regulatory assessment.
1-Octanamine functions as an analytical reagent and synthesis reference in organic, surface, and materials-chemistry laboratories.
1-Octanamine can support reaction-development, spectroscopy, chromatography, adsorption, interfacial-tension, corrosion, and functionalization studies.
DESCRIPTION
1-Octanamine is a primary aliphatic amine containing a straight chain of eight carbon atoms.
1-Octanamine is systematically named octan-1-amine and is commonly known as Octylamine or n-Octylamine.
1-Octanamine has the molecular formula C₈H₁₉N and a molecular weight of approximately 129.24 g/mol.
1-Octanamine is identified by CAS Number 111-86-4 and EC Number 203-916-0.
1-Octanamine contains one terminal primary amino group attached to a saturated linear hydrocarbon chain.
1-Octanamine combines a polar basic amino head group with a predominantly hydrophobic C8 alkyl region.
1-Octanamine normally appears as a colorless to pale-yellow liquid with a strong ammonia-like or amine-like odor.
1-Octanamine can discolor through oxidation, contamination, prolonged heat exposure, or unsuitable storage.
1-Octanamine has a melting point near −1°C and a normal boiling point near 179°C.
1-Octanamine has a density of approximately 0.78 g/mL at 20°C and is less dense than water.
1-Octanamine has low water solubility in its unprotonated free-base form.
1-Octanamine becomes more water compatible after conversion into protonated octylammonium salts.
1-Octanamine behaves as a weak organic base and readily accepts a proton at the nitrogen atom.
1-Octanamine neutralization with acids is exothermic and produces the corresponding octylammonium salt.
1-Octanamine reacts as a nucleophile with epoxides, activated carboxylic-acid derivatives, alkylating agents, aldehydes, ketones, and isocyanates.
1-Octanamine reactivity allows the preparation of amides, imines, secondary amines, ureas, ammonium salts, and surfactant derivatives.
1-Octanamine can be manufactured through catalytic hydrogenation of a suitable C8 nitrile or through reductive amination of a C8 carbonyl compound.
1-Octanamine manufacturing conditions must control secondary amines, tertiary amines, residual nitrile, water, catalyst residues, and color.
1-Octanamine provides stronger hydrophobic character than shorter-chain primary alkylamines.
1-Octanamine still retains sufficient amino-group reactivity for salt formation, adsorption, condensation, and nucleophilic substitution.
1-Octanamine is flammable and can form combustible vapor-air mixtures under unsuitable handling conditions.
1-Octanamine has a commonly reported flash point near 60°C, although the exact value depends on the test method and material specification.
1-Octanamine is incompatible with strong acids, strong oxidizing agents, acid chlorides, anhydrides, isocyanates, epoxides, and other highly reactive electrophiles.
1-Octanamine can release substantial heat during uncontrolled neutralization or addition reactions.
1-Octanamine is corrosive to skin and capable of causing severe eye damage according to commonly reported classifications.
1-Octanamine also requires strict environmental containment because reported classifications include high acute and chronic aquatic toxicity.
PROPERTIES
Chemical Name: Octan-1-amine
Chemical Class: Primary Aliphatic Amine
CAS Number: 111-86-4
EC Number: 203-916-0
Molecular Formula: C₈H₁₉N
Molecular Weight: 129.24 g/mol
Physical Form: Liquid
Appearance: Colorless to Pale-Yellow Liquid
Odor: Strong Ammonia-Like or Amine-Like Odor
Melting Point: Approximately −1°C
Boiling Point: Approximately 179°C
Density at 20°C: Approximately 0.78 g/mL
Flash Point: Approximately 60°C, Method Dependent
Water Solubility: Low in Free-Base Form
Primary Functions: Chemical Intermediate, Surface Modifier, and Surfactant Precursor
Main Uses: Surfactants, Corrosion-Control Additives, Flotation Reagents, Coatings, and Organic Synthesis
Storage: Cool, Tightly Closed, Well Ventilated, and Away from Heat, Acids, and Oxidizing Agents
FIRST AID
Inhalation
Move the person exposed to 1-Octanamine vapor, mist, or fumes into fresh air and keep the person at rest.
Obtain immediate medical attention after 1-Octanamine inhalation because respiratory irritation, corrosive injury, or breathing difficulty can develop.
Skin Contact
Immediately remove clothing contaminated with 1-Octanamine and rinse the affected skin thoroughly with water for at least 15 minutes.
Obtain urgent medical attention because 1-Octanamine can cause severe chemical burns and contaminated clothing can prolong exposure.
Eye Contact
Immediately rinse eyes exposed to 1-Octanamine continuously with clean water for at least 15 minutes while holding the eyelids open.
Remove contact lenses when easy to do, continue rinsing, and obtain emergency ophthalmic attention because 1-Octanamine can cause serious eye damage.
Ingestion
Rinse the mouth after accidental ingestion of 1-Octanamine and do not induce vomiting.
Contact a physician or poison information center immediately because 1-Octanamine is corrosive and may be toxic if swallowed.
Note to Physicians
Treat 1-Octanamine exposure symptomatically and provide appropriate supportive care.
Assess 1-Octanamine exposure for airway injury, chemical burns, aspiration risk, systemic toxicity, exposure route, quantity, and symptom progression.
HANDLING AND STORAGE
Handling
Handle 1-Octanamine in a closed system wherever practical and avoid all contact with the eyes, skin, clothing, and respiratory tract.
Keep 1-Octanamine away from flames, sparks, hot surfaces, static discharge, acids, oxidizing agents, and incompatible reactive chemicals.
Ventilation
Provide effective local exhaust and general ventilation wherever 1-Octanamine is transferred, sampled, mixed, heated, or reacted.
Use suitable respiratory protection when engineering controls cannot adequately control 1-Octanamine vapor, mist, or aerosol.
Storage
Store 1-Octanamine in tightly closed and chemically compatible containers within a cool, dry, and well-ventilated flammable-material area.
Protect 1-Octanamine from direct sunlight, excessive heat, ignition sources, acids, oxidizing agents, moisture, and unauthorized access.
Spill and Leak Procedures
Eliminate ignition sources and contain spilled 1-Octanamine with a chemically compatible inert absorbent while providing adequate ventilation.
Prevent 1-Octanamine from entering drains, soil, groundwater, or surface water and place recovered waste in properly labeled closed containers.
Handling Precautions
Wear amine-resistant gloves, protective clothing, chemical splash goggles, and suitable face protection while handling 1-Octanamine.
Use grounded equipment, explosion-protected ventilation, emergency eyewash facilities, safety showers, and the current grade-specific Safety Data Sheet.
