Chemical products
  • Dioctyl Terephthalate (DOTP) CAS 6422-86-2

Dioctyl Terephthalate (DOTP) CAS 6422-86-2

Dioctyl Terephthalate (DOTP) is supplied as a general-purpose plasticizer for PVC and other polymer systems, positioned as a non-ortho-phthalate alternative to traditional Dioctyl Phthalate (DOP) and other ortho-phthalate plasticizers. It is commonly used in flexible PVC formulations where processability, compatibility, and balanced mechanical properties are required. It is the di(2-ethylhexyl) ester of Purified Terephthalic Acid (PTA).

Typical downstream applications include wire and cable compounds, films and sheets, synthetic leather, and coated fabrics. DOTP is generally supplied in liquid form suitable for direct use in industrial compounding processes. Standard export packaging, bulk supply, and technical documentation such as COA, TDS, and SDS are available to support procurement and formulation work.

  • CAS: 6422-86-2
  • Synonyms: Dioctyl Terephthalate; Bis(2-ethylhexyl) Terephthalate; DEHT
  • Einecs: 229-176-9
  • Molecular Formula: C24H38O4
  • Grade: Industrial grade (for polymer processing and formulation use)
  • Package: Available in standard liquid chemical packaging; packaging can be arranged according to order volume
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Product Description

Physicochemical Properties

ItemTypical Value
AppearanceColorless to pale yellow oily liquid
OdorMild, characteristic
Molecular Weight390.56 g/mol
Boiling Point> 380°C
Density (20°C)Approx. 0.98 g/cm³
Flash Point> 200°C
SolubilityInsoluble in water; soluble in most organic solvents
Viscosity (20°C)Moderate viscosity liquid

Typical Applications

  • PVC plasticizer for wire and cable compounds, including insulation and sheathing materials
  • Flexible PVC products such as films, sheets, and flooring materials
  • Synthetic leather and coated fabric formulations
  • Polymer processing where non-phthalate plasticizers are preferred for regulatory or formulation considerations

For related plasticizer and terephthalate raw material pages, compare Dioctyl Phthalate, Diisodecyl Phthalate, and Purified Terephthalic Acid.

Packaging

DOTP is supplied as a liquid ester and is typically packed in clean, sealed drums, IBC containers, or bulk liquid systems suitable for industrial handling. Packaging is selected based on transport conditions and order volume to ensure product integrity during storage and shipment. Containers are handled to minimize contamination and maintain consistent quality throughout the supply chain.

Storage

Store in a cool, dry, and well-ventilated area in tightly closed original containers. Avoid prolonged exposure to direct sunlight and sources of heat. Properly sealed packaging should be maintained during storage and transportation to prevent contamination and preserve product stability.

FAQ - Technical & Supply Chain

  • Q:

    What is Dioctyl Terephthalate (DOTP) CAS 6422-86-2 used for?

    A: DOTP is a high-boiling ester plasticizer used mainly in flexible PVC and other polymer systems. Typical applications include wire and cable compounds, films, sheets, flooring, synthetic leather, and coated fabrics.
  • Q:

    Is DOTP a non-phthalate alternative to traditional plasticizers?

    A: Yes. DOTP is bis(2-ethylhexyl) terephthalate, a terephthalate ester rather than an ortho-phthalate. It is commonly used as a non-ortho-phthalate alternative in PVC formulations, but specific compatibility and performance should be evaluated in the target compound.
  • Q:

    What are the key performance properties of DOTP in PVC?

    A: It provides good flexibility, low volatility, high compatibility with PVC, and suitable electrical properties. Its high flash point and low water solubility also support use in cable insulation, sheathing, and durable flexible products.
  • Q:

    How is industrial-grade DOTP normally supplied?

    A: It is supplied as a liquid ester in standard industrial packaging such as drums, IBC containers, or bulk liquid systems. Packaging and transport arrangements are selected according to order volume and logistics requirements.
  • Q:

    How should DOTP be stored?

    A: Keep it in tightly closed original containers in a cool, dry, well-ventilated area. Avoid prolonged exposure to direct sunlight and heat sources, and keep the packaging sealed during storage and transport to prevent contamination.

Ordering & Documentation

Key information for document requests, quotations, and supply planning.

Documents

COA, TDS, SDS/MSDS and packing details are available on request.

Quotation

Send the CAS number, grade, quantity, packing preference and destination.

Sample & Supply

Support is available for samples, trial orders, bulk and repeat supply.

Storage & Shipping

Product-specific conditions are confirmed before order.

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