What is Cyclooctadiene
Analysts Sentiment
Bullish
35.2%
Neutral
31.7%
Bearish
33.1%
What's driving sentiment this week:
Past Week (2026-06-01 to 2026-06-07) — Sentiment: Neutral
No reported supply disruptions or inventory changes affected cyclooctadiene availability during the past week.
Demand from downstream sectors remained stable with no new consumption drivers reported in early June.
This Week (2026-06-08 to 2026-06-14) — Outlook: Neutral
Price action for cyclooctadiene is expected to remain rangebound given the absence of fresh fundamental catalysts.
No scheduled production updates or trade policy announcements are currently set to influence the market this week.
An unexpected facility outage or sudden shift in demand from key end users would be required to alter this steady outlook.
Key Market Impact
Equilibrium between supply and demand forces is maintaining flat pricing and stable margins in cyclooctadiene markets as of June 8, 2026.
Market participants should maintain current positions and avoid speculative exposure until new directional data emerges.
How About the Price?
Price Trajectory 2020–2026 (Brief Recap)
Phase 1 — Stable start (2020): The price of Cyclooctadiene began at $210.0 per ton in January 2020, with no recorded influencing factors or events noted in the influence log during this period, indicating a stable market baseline.
Phase 2 — Continuous status quo (2020–2026): From February 2020 through May 2026, the influence log shows no recorded factors or events, reflecting an absence of significant supply or demand disruptions, with no intermediate price data points revealed.
Phase 3 — Price elevation (June 2026): By June 8, 2026, the price rose to $330.5 per ton, representing a substantial increase of $120.5 or 57.38%, although the influence log lists no specific events or drivers for this surge.
Supply-side factors
- No documented supply-side factors or disruptions affecting price from 2020 to mid-2026 in the influence log.
Demand-side factors
- No recorded demand-side influences or changes noted in the provided influence log during the entire timeline.
Substitutes & Alternatives
| Substitute / Alternative | Replacement Scenario / How It Substitutes |
|---|---|
| 1,3-Cyclooctadiene (1,3-COD) | An isomeric diene that can serve as a ligand in some organometallic complexes where the exact geometry is less critical. It is a minor co-product of butadiene dimerization and is occasionally used in research-scale metal-complex synthesis when 1,5-COD is unavailable, though its coordination chemistry differs and it is not a drop-in replacement for most catalytic applications. |
| Norbornadiene (bicyclo[2.2.1]hepta-2,5-diene) | Used as an alternative diene ligand in transition-metal (Rh, Ir, Pd) precursor complexes such as [Rh(nbd)Cl]2. In organometallic synthesis, norbornadiene complexes are often interchangeable with COD complexes as catalyst precursors; the choice depends on ease of ligand displacement and cost. Norbornadiene is more strained and can be easier to displace, making it preferred in some asymmetric catalysis applications. |
| Cyclooctene | In ring-opening metathesis polymerization (ROMP) applications, cyclooctene can substitute for COD as a monomer when a saturated backbone polymer (polyoctenamer) is acceptable instead of a partially unsaturated one. Requires a different catalyst system (Grubbs-type) and yields a different polymer microstructure. |
| 1,5,9-Cyclododecatriene (CDT) | A co-product of butadiene trimerization, CDT is used in some of the same downstream pathways as COD (e.g., synthesis of 12-membered ring compounds, macrocyclic musks, laurolactam). In applications targeting large-ring intermediates, CDT can substitute for COD when the target molecule has a 12-carbon ring framework rather than an 8-carbon one. Not a direct drop-in but a functional alternative in certain fragrance and polyamide intermediate routes. |
| 1,3-Butadiene (direct use) | In some polymer applications where COD is used as a co-monomer to introduce cyclic unsaturation, butadiene itself can be used as a simpler diene co-monomer (e.g., in EPDM-type or specialty rubber formulations). This substitution requires reformulation of the polymerization process and yields different polymer properties (linear vs. cyclic repeat units). |
| Cyclooctatetraene (COT) | In specialized organometallic and materials chemistry research, COT (an 8-membered fully conjugated ring) can substitute for COD as a ligand or building block when aromaticity or full conjugation is desired. COT forms distinct metal complexes (e.g., uranocene) and is not interchangeable in catalytic applications, but serves as an alternative in fundamental coordination chemistry studies. |
| Allyl-based ligands (e.g., allyl chloride / allyl acetate systems) | In palladium-catalyzed reactions where [Pd(COD)Cl2] or similar COD-Pd complexes are used as catalyst precursors, allyl-palladium chloride dimer ([Pd(allyl)Cl]2) or Pd(OAc)2 with added phosphine ligands can serve as alternative precatalysts. This substitution is common in industrial fine-chemical synthesis when COD-based Pd precursors are costly or supply-constrained. |
Regulatory Status
| Region | Regulation / Policy Name | Issuing Authority | Year (enacted or latest revision) | Key Requirement / Threshold | Source |
|---|---|---|---|---|---|
| European Union | REACH Regulation (EC) No 1907/2006 | ECHA | 2007 | Substance pre-registered under REACH; CAS 111-78-4 (EC 203-907-1) listed as REACH registered (no further restriction or authorisation) | https://echa.europa.eu/substance-information/-/substanceinfo/100.298.892 |
| European Union | Urban Waste Water Treatment Directive (Directive 91/271/EEC) | ECHA | 1991 (amended 2013) | Discharge requirements for urban wastewater treatment plants (Annex I Tables 1 & 2) and to sensitive areas; no specific numerical threshold for this substance | https://echa.europa.eu/substance-information/-/substanceinfo/100.298.892 |
| United States | TSCA Inventory under Toxic Substances Control Act | EPA | 1976 | ACTIVE commercial activity status; no additional reporting or restrictions | https://pubchem.ncbi.nlm.nih.gov/compound/1_5-Cyclooctadiene |
| International | Dangerous Goods Regulations (IMDG Code / GGVSee / ADR / RID) | IMO / UN | 1970s (current editions) | UN No. 2520; Proper Shipping Name: CYCLOOCTADIENES; Hazard Class: 3; Packing Group: III; flash point 32–38 °C | https://www.nj.gov/health/eoh/rtkweb/documents/fs/0580.pdf; https://synquestlabs.com/Home/DownloadPDF?location=msds&fileName=1400%2F1400-1-14.pdf |
| China | Measures for Environmental Management of New Chemical Substances | MEE | 2010 (revised) | Listed in IECSC existing chemical inventory; no new-chemical notification or production permit required | https://www.chemicalbook.com/msds/1-5-cyclooctadiene.htm |
Key Influence Events
Cyclooctadiene (COD) refers primarily to 1,5-cyclooctadiene (1,5-COD), a cyclic diene hydrocarbon with the molecular formula C8H12 and two non-conjugated double bonds in an eight-membered ring. It is a colorless to pale yellow liquid with a mild hydrocarbon odor, widely used in organometallic chemistry and as a ligand in transition-metal catalysis (notably in rhodium, iridium, and palladium complexes), as well as a monomer or co-monomer in specialty polymer synthesis. The 1,5-isomer is by far the most commercially significant form. It is produced industrially by the cyclodimerization of butadiene over a nickel-based catalyst, and serves as a key intermediate in the synthesis of cyclooctene, cyclooctanone, and other eight-membered ring compounds.
Top Countries Production Capacity
Production Process of Cyclooctadiene
Cyclooctadiene (COD) refers primarily to 1,5-cyclooctadiene (1,5-COD), a cyclic diene hydrocarbon with the molecular formula C8H12 and two non-conjugated double bonds in an eight-membered ring. It is a colorless to pale yellow liquid with a mild hydrocarbon odor, widely used in organometallic chemistry and as a ligand in transition-metal catalysis (notably in rhodium, iridium, and palladium complexes), as well as a monomer or co-monomer in specialty polymer synthesis. The 1,5-isomer is by far the most commercially significant form. It is produced industrially by the cyclodimerization of butadiene over a nickel-based catalyst, and serves as a key intermediate in the synthesis of cyclooctene, cyclooctanone, and other eight-membered ring compounds.
Specs & Grades
| Property | Typical Value / Range | Unit | Grade / Note |
|---|---|---|---|
| Purity (1,5-COD) | ≥98.0 | % GC | Technical Grade |
| Purity (1,5-COD) | ≥99.0 | % GC | High-Purity / Catalyst Grade |
| Appearance | Clear, colorless to pale yellow liquid | — | All grades |
| Molecular Weight | 108.18 | g/mol | — |
| Boiling Point | 150–152 | °C at 1 atm | — |
| Melting Point | −69 | °C | — |
| Density (20 °C) | 0.882–0.886 | g/mL | — |
| Refractive Index (n20/D) | 1.490–1.494 | — | — |
| Water Content (Karl Fischer) | ≤100 | ppm | Catalyst Grade |
| Peroxide Content | ≤20 | ppm as H2O2 | Stabilized grade |
| 1,3-COD (isomer impurity) | ≤1.0 | % | Technical Grade |
| 1,3-COD (isomer impurity) | ≤0.5 | % | High-Purity Grade |
| Color (APHA) | ≤20 | Hazen | High-Purity Grade |
| Inhibitor (BHT or similar) | 50–200 | ppm | Stabilized commercial grade |
Who are the Top Players?
| Company | Headquarters | Key Facilities |
|---|---|---|
| Evonik Industries AG | Essen, Germany |
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