Description

Di-(2-Ethylhexyl)4,5-Epoxytetrahydrophthalate is a specialized plasticizer and stabilizer known for its unique epoxidized structure. This compound is valued for its ability to impart flexibility and thermal stability to polymer matrices while also functioning as a secondary stabilizer. It is primarily sought by manufacturers in the plastics and polymer industries for formulating high-performance PVC, vinyl, and other specialty polymer products. The product is supplied to meet the stringent quality demands of industrial applications.

Application

• Primary Plasticizer for PVC: Imparts excellent flexibility and low-temperature performance to polyvinyl chloride (PVC) films, sheets, and cables.
• Stabilizer in Polymer Formulations: Acts as a secondary heat stabilizer and scavenger for hydrochloric acid (HCl) generated during PVC processing.
• Specialty Adhesives and Sealants: Used as a modifier to enhance the flexibility and durability of high-performance adhesives and sealants.
• Coating and Ink Resins: Incorporated into resin systems for coatings and inks to improve film properties and adhesion.
• Wire and Cable Insulation: A key component in formulations for flexible, flame-retardant, and durable wire and cable jacketing.
• Automotive Interiors: Used in the production of flexible components such as dashboards, door panels, and interior trim.
• Medical Device Tubing: Employed in compliant formulations for medical-grade flexible tubing and bags where specific plasticizer properties are required.
• Flooring and Wall Coverings: Enhances the flexibility and wear resistance of vinyl flooring and wall covering materials.

Basic Information

Product Name	Di-(2-Ethylhexyl)4,5-Epoxytetrahydrophthalate
CAS No.	10138-36-0
Molecular Formula	C26H46O5
Molecular Weight	438.65 g/mol
Synonyms	Bis(2-ethylhexyl) 4,5-epoxytetrahydrophthalate; Di(2-ethylhexyl) 4,5-epoxycyclohexane-1,2-dicarboxylate; Epoxidized Dioctyl Tetrahydrophthalate; Epoxy Plasticizer ESO-THP; DEHET; 4,5-Epoxy-tetrahydrophthalic Acid Bis(2-ethylhexyl) Ester; Plasticizer DOP-Epoxy
EINECS	233-386-0

Quality Control

Our Di-(2-Ethylhexyl)4,5-Epoxytetrahydrophthalate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, epoxide content, and physical properties. A comprehensive Certificate of Analysis (COA) detailing assay, color, acidity, and other critical parameters is provided with each shipment. We are committed to supplying material that meets the consistent quality standards required for industrial and specialty polymer applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is easily oxidized; for long-term storage, maintaining an inert atmosphere (e.g., under nitrogen) is recommended to preserve quality. Keep away from strong oxidizing agents, acids, and heat sources.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Epoxide Oxygen Content	≥ 3.5%
Acidity (as Phthalic Acid)	≤ 0.1%
Color (APHA)	≤ 50
Moisture (KF)	≤ 0.1%
Refractive Index (n20D)	1.465 - 1.475
Specific Gravity (20/20°C)	0.990 - 1.010

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.