Description

Bis(2,3-Epoxypropyl) Isophthalate is a high-purity, difunctional epoxy resin intermediate derived from isophthalic acid. This compound is valued for its ability to introduce cross-linking and enhance thermal and chemical resistance in advanced polymer matrices. It is primarily sought by manufacturers in the electronics encapsulation, high-performance coatings, composite materials, and specialty adhesive sectors for formulating products with superior durability and performance.

Application

• Epoxy Resin Formulation: A key monomer for synthesizing high-performance, cross-linked epoxy resins with improved thermal stability.
• Electronic Encapsulants & Potting Compounds: Used to produce insulating materials that protect sensitive electronic components from moisture, heat, and mechanical stress.
• Advanced Composite Materials: Serves as a matrix resin precursor for fiber-reinforced composites in aerospace and automotive applications.
• High-Performance Coatings: Imparts excellent chemical resistance, adhesion, and durability to industrial and protective coatings.
• Specialty Adhesives: Enhances the strength and environmental resistance of structural and engineering adhesives.
• Electrical Laminates: Used in the production of printed circuit boards (PCBs) and other electrical insulating materials.

Basic Information

Product Name	Bis(2,3-Epoxypropyl) Isophthalate
CAS No.	7195-43-9
Molecular Formula	C14H14O6
Molecular Weight	278.26 g/mol
Synonyms	Diglycidyl Isophthalate; 1,3-Benzenedicarboxylic Acid, Bis(oxiranylmethyl) Ester; Isophthalic Acid Diglycidyl Ester; Bis(glycidyl) Isophthalate; DGIP; Epoxy Resin Intermediate (Isophthalate Type); Oxirane, 2,2'-[1,3-phenylenebis(oxymethylene)]bis-
EINECS	230-555-9

Quality Control

Our Bis(2,3-Epoxypropyl) Isophthalate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity, epoxy equivalent weight, and impurity profiles. Certificates of Analysis (COA) documenting these results are provided to guarantee consistency and compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Epoxy Equivalent Weight (EEW)	139 - 145 g/eq
Viscosity (25°C)	Contact for details
Color (Gardner)	≤ 2
Hydrolyzable Chloride	≤ 0.1%
Moisture (KF)	≤ 0.2%

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