What is Dioctyl Terephthalate
Analysts Sentiment
Bullish
38.7%
Neutral
22.9%
Bearish
38.4%
What's driving sentiment this week:
Past Week (2026-06-01 to 2026-06-07) — Sentiment: Mixed
OPEC+ agreed on June 7 to raise oil output quotas by 188,000 barrels per day starting July 2026, increasing global crude supply and easing naphtha and energy feedstock costs for DOTP production.
US crude inventories fell by 8 million barrels the week ending May 29, 2026, tightening energy feedstock availability and pushing upstream DOTP production costs higher.
The US-Iran conflict has partially closed the Strait of Hormuz as of June 7, limiting actual OPEC+ output despite quota increases and sustaining upstream cost pressures for raw materials feeding DOTP.
This Week (2026-06-08 to 2026-06-14) — Outlook: Mixed
DOTP market outcomes will be shaped by the offsetting effects of increased OPEC+ quotas versus ongoing geopolitical supply constraints, keeping directional momentum uncertain.
The key catalyst remains evolving OPEC+ production actuals versus announced quotas as the July output hike implementation unfolds (expected mid-June).
A rapid resolution of the US-Iran conflict and reopening of the Strait of Hormuz would significantly ease upstream cost pressures and push DOTP prices lower.
Key Market Impact
Upstream feedstock price volatility dominates DOTP margins, driven by conflicting supply signals from OPEC+ policy easing and geopolitical disruptions.
Market participants are likely to remain cautious on restocking and hedging, awaiting clearer signals on crude availability and geopolitical stability before large inventory moves.
How About the Price?
Price Trajectory 2020–2026 (Brief Recap)
Phase 1 — Stable Pricing (2020–2026): No recorded influencing factors or events from the influence log throughout this period, with a consistent price of $1500 USD/ton reported in June 2026.
Supply-side factors
- No documented supply-side factors or events impacting price from 2020 through mid-2026 as per the influence log.
Demand-side factors
- No documented demand-side factors or events recorded in the influence log for the period 2020 to mid-2026.
Substitutes & Alternatives
| Substitute | Replacement Scenario / How It Substitutes |
|---|---|
| Di(2-ethylhexyl) Phthalate (DEHP) | The legacy general-purpose PVC plasticizer that DOTP was designed to replace. DEHP can substitute for DOTP in non-regulated industrial PVC applications (cables, hoses, industrial sheeting) where phthalate restrictions do not apply. However, the substitution direction is now predominantly reversed — DOTP replaces DEHP — due to REACH SVHC restrictions on DEHP in the EU and similar regulations globally. Drop-in replacement at equivalent loading levels (typically 40–70 phr in PVC). |
| Diisononyl Phthalate (DINP) | A high-molecular-weight ortho-phthalate plasticizer used in flexible PVC for flooring, cables, and automotive parts. Can substitute for DOTP in applications where DINP is not yet restricted, offering similar plasticizing efficiency and lower cost. Requires no reformulation in most PVC compounds. However, DINP faces increasing regulatory scrutiny (REACH authorization candidate), limiting its long-term viability as a substitute. |
| Diisodecyl Phthalate (DIDP) | A high-molecular-weight phthalate plasticizer with very low volatility, used in wire and cable insulation and automotive PVC. Can partially substitute for DOTP in high-temperature cable applications where low volatility is critical. Drop-in at similar loading levels, but subject to the same regulatory pressure as other ortho-phthalates. |
| Dioctyl Adipate (DOA / DEHA) | An aliphatic diester plasticizer offering superior low-temperature flexibility (Tg depression). Substitutes for DOTP in cold-climate cable jacketing, refrigerator gaskets, and flexible packaging films where low-temperature performance is the primary requirement. Often used in blends with DOTP to balance cost and low-temperature properties. Requires formulation adjustment as DOA has higher volatility and lower permanence than DOTP. |
| Diisononyl Cyclohexane-1,2-Dicarboxylate (DINCH) | A non-phthalate, non-aromatic plasticizer (hydrogenated phthalate) approved for sensitive applications. Substitutes for DOTP in medical devices, food-contact PVC, and children's toys where the highest regulatory compliance is required. DINCH offers excellent toxicological profile but at a significant cost premium over DOTP. Requires minor formulation adjustment due to slightly different plasticizing efficiency. |
| Acetyl Tributyl Citrate (ATBC) | A citrate-based bio-derived plasticizer used in medical-grade PVC (blood bags, tubing), food packaging films, and toys. Substitutes for DOTP in applications requiring FDA/EU food-contact or medical device compliance and where bio-based content is valued. Higher cost and lower permanence than DOTP; typically used at similar or slightly higher loading levels. Partial replacement in blends with DOTP is common to balance performance and cost. |
| Trimellitate Plasticizers (TOTM, TINTM) | Triester plasticizers based on trimellitic anhydride, offering very low volatility and high heat resistance. Substitute for DOTP in high-temperature wire and cable insulation (105°C and 125°C rated cables) and automotive under-hood applications where DOTP's thermal stability is insufficient. Not a drop-in replacement — requires reformulation and typically used at lower loading levels due to higher molecular weight and viscosity. |
| Epoxidized Soybean Oil (ESBO) | A bio-based secondary plasticizer and heat stabilizer co-plasticizer. Partially substitutes for DOTP (typically 5–15 phr replacement) in PVC food-contact applications and flexible packaging to improve heat stability and reduce primary plasticizer content. Cannot fully replace DOTP as a primary plasticizer due to limited compatibility at high loadings; used as a partial, functional substitute in specific formulations. |
Regulatory Status
| Region | Regulation / Policy Name | Issuing Authority | Year (enacted or latest revision) | Key Requirement / Threshold | Source |
|---|---|---|---|---|---|
| EU | REACH Regulation (EC) No 1907/2006 | European Chemicals Agency (ECHA) | 2007 (Candidate List ongoing) | Identification ongoing for SVHC (Article 57 criteria); no inclusion on Candidate List or Authorisation List | ECHA public activities and candidate list references |
| US | TSCA Section 6(a) Phthalates Risk Evaluation | US Environmental Protection Agency (EPA) | 2025 (final evaluations completed) | Evaluations cover phthalate plasticizers including DCHP (related); no unreasonable risk determination for DOTP under conditions of use | EPA Phthalates page (epa.gov) |
| US | CPSIA Section 108 Phthalate Ban | Consumer Product Safety Commission (CPSC) | 2011 (permanent provisions) | 0.1% concentration prohibition in toys/childcare articles for DEHP, DBP, BBP (DOTP excluded) | CPSC final rule 76 FR 68150 |
| US | FDA Food Additive Regulations (21 CFR) | US Food and Drug Administration (FDA) | 2022 (revocation final) | Revokes authorizations for 23 specific phthalates; DOTP not among revoked or restricted for food contact | FDA final rule 87 FR 64140 |
| China | Measures for Environmental Management of New Chemical Substances | Ministry of Ecology and Environment (MEE) | 2010 (amended) | IECSC inventory listing; no specific restrictions or thresholds for DOTP in plasticizers/toys/food contact | MEE official chemical inventory |
| Global | Antidumping Duty Orders | US Department of Commerce (Commerce) | 2025 (orders issued) | Anti-dumping orders imposed on DOTP imports from Malaysia, Poland, Taiwan, Türkiye; no duties on China-origin imports | USITC and Federal Register notices |
Key Influence Events
Dioctyl Terephthalate (DOTP), also known as Di(2-ethylhexyl) terephthalate (DEHT), is a phthalate-free plasticizer with the chemical formula C24H38O4 and CAS number 6422-86-2. It is produced by the esterification of terephthalic acid (TPA) with 2-ethylhexanol (2-EH) in the presence of an acid or titanium-based catalyst. DOTP is a clear, oily liquid used primarily as a general-purpose plasticizer for polyvinyl chloride (PVC) and other polymers, offering good thermal stability, low volatility, and excellent electrical insulation properties. It is widely regarded as a safer alternative to ortho-phthalate plasticizers such as DEHP (di(2-ethylhexyl) phthalate), and is used in applications including flexible PVC films, cables, flooring, medical devices, toys, and automotive interior components.
Top Countries Production Capacity
Production Process of Dioctyl Terephthalate
Dioctyl Terephthalate (DOTP), also known as Di(2-ethylhexyl) terephthalate (DEHT), is a phthalate-free plasticizer with the chemical formula C24H38O4 and CAS number 6422-86-2. It is produced by the esterification of terephthalic acid (TPA) with 2-ethylhexanol (2-EH) in the presence of an acid or titanium-based catalyst. DOTP is a clear, oily liquid used primarily as a general-purpose plasticizer for polyvinyl chloride (PVC) and other polymers, offering good thermal stability, low volatility, and excellent electrical insulation properties. It is widely regarded as a safer alternative to ortho-phthalate plasticizers such as DEHP (di(2-ethylhexyl) phthalate), and is used in applications including flexible PVC films, cables, flooring, medical devices, toys, and automotive interior components.
Specs & Grades
| Property | Typical Value / Range | Unit | Grade / Note |
|---|---|---|---|
| Appearance | Clear, colorless to pale yellow liquid | — | All grades |
| Purity (DOTP content) | ≥99.0 | wt% | Standard commercial grade |
| Color (APHA/Hazen) | ≤20 | APHA | Standard grade |
| Color (APHA/Hazen) | ≤10 | APHA | High-purity / low-color grade |
| Acid Value | ≤0.10 | mg KOH/g | All grades |
| Saponification Value | 285–295 | mg KOH/g | All grades |
| Density (20°C) | 0.981–0.985 | g/cm³ | All grades |
| Viscosity (25°C) | 50–80 | mPa·s | All grades |
| Flash Point (COC) | ≥230 | °C | All grades |
| Boiling Point | ~400 | °C | At atmospheric pressure |
| Water Content (Karl Fischer) | ≤0.10 | wt% | All grades |
| Refractive Index (20°C) | 1.485–1.488 | — | All grades |
| 2-Ethylhexanol Residual | ≤300 | ppm | Standard grade |
| 2-Ethylhexanol Residual | ≤100 | ppm | Low-odor / medical grade |
| Heavy Metals (as Pb) | ≤10 | ppm | Medical / food-contact grade |
| Specific application grade | Meets EN 71-3, REACH, RoHS | — | Toy / medical / food-contact grade |
Who are the Top Players?
| Company | Headquarters | Key Facilities |
|---|---|---|
| Eastman Chemical Company | Kingsport, Tennessee, USA | Kingsport, Tennessee, Texas City, Texas |
| BASF SE | Ludwigshafen, Germany | Pasadena, Texas, USA |
| LG Chem Ltd. | Seoul, South Korea | Ulsan, South Korea |
| Aekyung Petrochemical Co. Ltd. | Seoul, South Korea | Ulsan, South Korea |
| Nan Ya Plastics Corporation | Taipei, Taiwan | Mailiao Industrial Park, Taiwan, Ningbo, China |
| Shandong Blue Sail Chemical Co., Ltd. | Zibo, Shandong, China | Qilu Chemical Industrial Area, Zibo, Shandong, China |
| Oxea GmbH | Monheim am Rhein, Germany | Steyerberg, Germany |
| Grupa Azoty ZAK S.A. | Puławy, Poland | Puławy, Poland |
| UPC Technology Corporation | Kaohsiung, Taiwan | Kaohsiung, Taiwan |
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