What is Isooctanoic Acid
Analysts Sentiment
Bullish
38.6%
Neutral
28.2%
Bearish
33.2%
What's driving sentiment this week:
Past Week (2026-06-01 to 2026-06-07) — Sentiment: Mixed
In the United States, easing ocean freight rates and lower propylene prices since late May enhanced supply chain efficiencies and production margins for 2-Ethylhexanoic Acid, supporting overall supply availability by around 1% to 1.2%.
Downstream demand remained cautious amid weak construction financing and tariff pressures, keeping volumes steady but preventing upward price momentum as coatings and plasticizer sectors restrained procurement.
European chemical producer price inflation in April elevated input costs, squeezing production margins and limiting producer pricing power despite supply-side relief elsewhere.
This Week (2026-06-08 to 2026-06-14) — Outlook: Neutral
Isooctanoic Acid market poised to trade sideways reflecting balanced supply expansion from lower feedstock/freight costs versus restrained demand and inflationary cost headwinds.
No major new catalysts are scheduled this week to materially shift production costs or downstream purchasing patterns.
A sudden hike in feedstock prices or renewed demand weakness from coatings/plasticizers could tilt prices downward and pressure producer margins sharply.
Key Market Impact
Supply-side cost improvements from propylene and freight reductions dominate price formation but are offset by muted end-user demand and inflation-driven input price pressures.
Producers will focus on maintaining output to protect market share while buyers remain cautious in restocking, balancing inventories amid uncertain margin outlooks.
How About the Price?
Price Trajectory 2020–2026 (Brief Recap)
Phase 1 — Initial stable pricing (2020): Isooctanoic Acid prices started at $120.5 per ton in January 2020, with no notable events impacting the market as per the influence log.
Phase 2 — Price increase observed (up to June 2026): Prices rose to $178.3 per ton by June 8, 2026, representing a change of $57.8, but no specific drivers are recorded in the influence data to explain this increase.
Supply-side factors
Demand-side factors
Substitutes & Alternatives
| Substitute / Alternative | Replacement Scenario / How It Substitutes |
|---|---|
| Neodecanoic Acid (Versatic 10) | Used as a drop-in or partial replacement in metal drier salts (cobalt, manganese, zirconium neodecanoates) for alkyd coatings and printing inks. Neodecanoic acid offers higher hydrolytic stability and lower volatility; it is the preferred alternative when improved weathering resistance or reduced odor is required. Reformulation of the metal salt is straightforward since the carboxylate coordination chemistry is analogous. |
| 2-Ethylhexanoic Acid (same compound, different purity grade) | Within the isooctanoic acid family, lower-purity technical grades can substitute for high-purity grades in less demanding applications such as PVC heat stabilizer intermediates or lubricant additive synthesis, reducing cost at the expense of color and consistency. |
| Naphthenic Acids | Historically used as the primary source of metal soaps (driers, catalysts) before synthetic branched acids became dominant. Naphthenic acid metal salts can replace isooctanoic acid metal salts in paint driers and oil-field corrosion inhibitors where color and odor are not critical. The substitution is straightforward for drier applications but naphthenic acids have variable composition and stronger odor, limiting use in high-quality coatings. |
| Isononanoic Acid | A C9 branched-chain acid used as an alternative to isooctanoic acid in ester plasticizer synthesis (e.g., trimethylolpropane triisononanoate) and metalworking fluids. It offers slightly higher molecular weight and lower volatility. Substitution typically requires minor reformulation to adjust ester stoichiometry and viscosity targets. |
| Tall Oil Fatty Acids (TOFA) | Can partially replace isooctanoic acid in metal soap and drier applications where unsaturation is acceptable. TOFA-based cobalt or manganese driers are lower cost but have inferior oxidative stability and color. Used as a cost-reduction substitute in industrial coatings and alkyd resins where premium performance is not required. |
| Octanoic Acid (Caprylic Acid, n-C8) | The straight-chain C8 acid can substitute for isooctanoic acid in some metal salt and catalyst applications (e.g., tin or bismuth carboxylates for polyurethane catalysis). However, its higher melting point and lower solubility in hydrocarbon solvents limit direct drop-in use; reformulation of the solvent system is typically needed. |
| Stearic Acid / Oleic Acid | Long-chain fatty acids can replace isooctanoic acid in metallic soap applications (e.g., calcium, zinc, or lead stabilizers for PVC) where the primary function is lubrication and thermal stabilization rather than solubility in aromatic solvents. The substitution is partial and application-specific; branched-acid soaps generally outperform stearates in solubility and compatibility with resin systems. |
Regulatory Status
| Region | Regulation / Policy Name | Issuing Authority | Year (enacted or latest revision) | Key Requirement / Threshold | Source |
|---|---|---|---|---|---|
| EU | REACH Regulation (EC) No 1907/2006 | ECHA | 2006 | Registered; no reproductive toxicity classification (Category 1/2) assigned under CLP | ECHA Chemical Substance Information, https://chem.echa.europa.eu/100.042.364/identity |
| US | TSCA Chemical Substance Inventory | US EPA | ongoing updates (latest 2025) | Listed (active) | US EPA TSCA Inventory, https://www.epa.gov/tsca-inventory |
| China | Inventory of Existing Chemical Substances in China (IECSC) | Ministry of Ecology and Environment (MEE) | 2013 (ongoing updates) | Not listed | ECHEMI SDS (IECSC reference), https://www.echemi.com/sds/isooctanoic-acid-pd180521112985.html |
| International | IMDG Code | IMO (via SDS) | ongoing | Class 8, UN 3265, PG III (corrosive liquid, acidic, organic) | ECHEMI SDS, https://www.echemi.com/sds/isooctanoic-acid-pd180521112985.html |
Key Influence Events
Isooctanoic acid (also known as 2-ethylhexanoic acid, CAS 149-57-5) is a branched-chain C8 saturated fatty acid with the molecular formula C8H16O2. It is a colorless to pale yellow oily liquid with a mild, rancid odor, produced primarily as a co-product or main product of the oxo synthesis (hydroformylation) of heptene or by oxidation of 2-ethylhexanol. It is widely used as a metal salt precursor (driers, catalysts, stabilizers), as a ligand in coordination chemistry, as a raw material for ester plasticizers and lubricants, and as an intermediate in the synthesis of peroxide initiators and pharmaceutical compounds. Its branched structure imparts good solubility in organic solvents and low water solubility, making it valuable in coatings, PVC stabilizers, and metalworking fluid formulations.
Top Countries Production Capacity
Production Process of Isooctanoic Acid
Isooctanoic acid (also known as 2-ethylhexanoic acid, CAS 149-57-5) is a branched-chain C8 saturated fatty acid with the molecular formula C8H16O2. It is a colorless to pale yellow oily liquid with a mild, rancid odor, produced primarily as a co-product or main product of the oxo synthesis (hydroformylation) of heptene or by oxidation of 2-ethylhexanol. It is widely used as a metal salt precursor (driers, catalysts, stabilizers), as a ligand in coordination chemistry, as a raw material for ester plasticizers and lubricants, and as an intermediate in the synthesis of peroxide initiators and pharmaceutical compounds. Its branched structure imparts good solubility in organic solvents and low water solubility, making it valuable in coatings, PVC stabilizers, and metalworking fluid formulations.
Specs & Grades
| Property | Typical Value / Range | Unit | Grade / Note |
|---|---|---|---|
| Purity (GC) | ≥ 99.0 | % | Technical / Industrial grade |
| Purity (GC) | ≥ 98.0 | % | Standard commercial grade |
| Acid Value | 380 – 390 | mg KOH/g | All grades |
| Saponification Value | 382 – 392 | mg KOH/g | All grades |
| Color (APHA/Hazen) | ≤ 20 | Hazen | High-purity / Drier grade |
| Color (APHA/Hazen) | ≤ 50 | Hazen | Standard industrial grade |
| Water Content (Karl Fischer) | ≤ 0.10 | % | All grades |
| Density (20 °C) | 0.902 – 0.910 | g/cm³ | All grades |
| Refractive Index (20 °C) | 1.424 – 1.428 | — | All grades |
| Flash Point (closed cup) | ≥ 110 | °C | All grades |
| Boiling Point | 227 – 229 | °C (at 1 atm) | Reference |
| Freezing / Pour Point | ≤ -60 | °C | Reference |
| Iodine Value | ≤ 1.0 | g I₂/100 g | All grades |
| Heavy Metals (as Pb) | ≤ 10 | ppm | Drier / Catalyst grade |
Who are the Top Players?
| Company | Headquarters | Key Facilities |
|---|---|---|
| BASF | Ludwigshafen, Germany | Ludwigshafen, Germany, Kuantan, Malaysia |
| Perstorp | Malmo, Sweden | Stenungsund, Sweden |
| OQ Chemicals | Monheim, Germany | Oberhausen, Germany |
| Eastman Chemical Company | Kingsport, Tennessee, USA | |
| KH Neochem Co., Ltd. | Tokyo, Japan | Chiba, Japan |
| Elekeiroz S.A. | Sao Paulo, Brazil | |
| Mitsubishi Chemical Corporation | Tokyo, Japan | |
| Dow Chemical Company | Midland, Michigan, USA | |
| Grupa Azoty S.A. | Krakow, Poland | |
| Shenyang Zhangming Chemical Co., Ltd. | Shenyang, China | |
| Jiangxi JYT Chemical Co., Ltd. | Nanchang, China |
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