Dioctyl terephthalate DOTP

Product Overview

Dioctyl Terephthalate (DOTP) — chemical name Di(2-ethylhexyl) terephthalate, CAS 6422-86-2 — is a colorless to slightly yellow oily liquid used as a primary plasticizer in PVC and other polymer applications. DOTP delivers a mix of high-temperature stability, low migration/volatility and good low-temperature flexibility, making it an excellent non-phthalate alternative to traditional phthalate plasticizers in cables, flexible PVC, artificial leather and specialty formulations.

Dioctyl terephthalate (DOTP) is an excellent main plasticizer used in polyvinyl chloride (PVC) plastics. Compared with the currently commonly used diisooctyl phthalate (DOP), it has the advantages of heat resistance, cold resistance, non-volatility, extraction resistance, softness and good electrical insulation properties, and shows excellent durability in products. , Soap water resistance and low temperature softness. Because of its low volatility, the use of DOTP can fully meet the temperature resistance requirements of wires and cables, and can be widely used in 70°C resistant cable materials (International Electrotechnical Commission IEC standards) and other various PVC soft products.
In addition to being widely used as a plasticizer for cable materials and PVC, DOTP can also be used in the production of artificial leather films. In addition, DOTP has excellent compatibility and can also be used as a plasticizer for acrylonitrile derivatives, polyvinyl butyral, nitrile rubber, nitrocellulose, etc. It can also be used as a plasticizer for synthetic rubber, coating additives, Precision instrument lubricant, lubricant additive, and can also be used as a paper softener.

Key Properties & Typical Specifications

Melting Point	-48 °C
Boiling Point	400 °C (lit.)
Density	0.986 g/mL at 25 °C (lit.)
Vapor Pressure	1 mm Hg ( 217 °C)
Refractive Index	n20/D 1.49(lit.)
Fp	230 °F
Storage Temp.	2-8°C
Solubility	Aqueous Base (Slightly)
Form	Liquid
Color	Clear Colorless
Water Solubility	Insoluble

Performance Advantages

High heat resistance & thermal stability — suitable for wire & cable formulations and other high-temperature applications.
Low volatility & migration — improves long-term flexibility and reduces plasticizer loss vs many alternatives.
Excellent extraction and soap-water resistance — ideal for products exposed to oils, detergents or outdoor conditions.
Good electrical insulation properties — preferred for PVC electrical cable insulation meeting IEC 70 °C and similar specs.
Broad compatibility — works well in PVC, acrylonitrile derivatives, nitrile rubbers, nitrocellulose and specialty polymer systems.

Typical Applications

1. PVC cables & wiring insulation (heat-resistant cable compounds).
2. Flexible PVC products: hoses, profiles, sealants, gaskets and films.
3. Artificial leather / PVC leather films & synthetic leather production.
4. Specialty polymer formulations where low migration and long durability are required (e.g., nitrile rubber, PVB, nitrocellulose).
5. Additive uses: lubricant additives, processing aids and specialty coatings.

Packaging, Supply & Commercial Information

Standard packing: 200 kg drums, 900 kg IBC, flexibag; bulk orders possible.
Purposes: sample orders available (customer pays courier); bulk / contract supply for OEMs.
Trade & export: stable global supply network and pre-shipment COA sharing.

Safety & Storage

Store in a cool, dry place (recommended 2–8 °C for long term storage). Avoid exposure to strong oxidizers and high temperatures. Handle concentrated product with suitable PPE (gloves, goggles); DOTP is generally stable under normal industrial use; follow local regulatory guidance for use in consumer or food-contact applications.

Why buy from Greenchem International? 

Quality guarantee: batch COA shared before quotation; purity ≥99.5%.
Stable capacity & export experience: long-term supply, flexible MOQ for trials.
Technical support: formulation guidance for cable, PVC leather, and specialty polymer systems.
Competitive commercial terms: FOB / CIF pricing and support for pre-shipment inspection.

Ordering & Inquiry

Need DOTP for your formulation or product line? Provide required grade / quantity / application / delivery country and we’ll send a tailored quote, COA and estimated lead time. Request a sample or quote now to evaluate DOTP performance in your process.