Description

Diallyl Isophthalate is a high-purity, unsaturated diester monomer derived from isophthalic acid. This compound is valued for its ability to undergo cross-linking polymerization, forming durable, heat-resistant, and chemically stable thermoset networks. It is primarily sought by manufacturers in the polymer and specialty materials industries. Key applications include its use as a reactive diluent and cross-linking agent in the production of high-performance resins and coatings.

Application

• As a reactive diluent and cross-linking agent in unsaturated polyester resins (UPR) for improved mechanical properties.
• Key monomer in the synthesis of thermosetting polymers for electrical laminates and printed circuit boards.
• Used in the formulation of high-temperature resistant coatings and adhesives.
• Component in specialty plasticizers to enhance flexibility and durability in polymer matrices.
• Intermediate in organic synthesis for creating specialty chemicals and pharmaceutical precursors.
• Used in research and development of advanced composite materials.

Basic Information

Product Name	Diallyl Isophthalate
CAS No.	1087-21-4
Molecular Formula	C14H14O4
Molecular Weight	246.26 g/mol
Synonyms	1,3-Benzenedicarboxylic Acid, 1,3-Diallyl Ester; Diallyl 1,3-Benzenedicarboxylate; Isophthalic Acid Diallyl Ester; Diallyl Isophthalate Monomer; DAIP; Diallyl Ester of Isophthalic Acid; 1,3-Diallyl Isophthalate
EINECS	214-131-1

Quality Control

Our Diallyl Isophthalate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including assay, impurity profiling, and physical property verification, to ensure it meets the high standards required for industrial and research applications. Certificates of Analysis (COA) documenting purity, identity, and key specifications are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider under an inert atmosphere to maintain monomer integrity.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.1%
Acid Value	≤ 1.0 mg KOH/g
Refractive Index (20°C)	1.520 - 1.530
Density (20°C)	1.10 - 1.12 g/cm³

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