Description

Isophthalic Acid Diisobutyl Ester is a high-purity diester derivative of isophthalic acid, valued for its excellent solvency and plasticizing properties. This compound is a versatile chemical intermediate that enhances flexibility and durability in polymer systems. It is primarily sought after by manufacturers in the plastics, coatings, and specialty chemical industries for formulating high-performance products.

Application

• As a plasticizer in PVC, polyurethanes, and other polymer systems to improve flexibility and processability.
• As a specialty solvent or coalescing agent in high-performance industrial and architectural coatings.
• As a key chemical intermediate in the synthesis of more complex esters, resins, and lubricant additives.
• In the formulation of adhesives and sealants to modify rheology and enhance adhesion properties.
• As a component in specialty inks and dyes to control viscosity and drying characteristics.
• Potential use as a fuel or lubricant additive to modify specific performance parameters.

Basic Information

Product Name	Isophthalic Acid Diisobutyl Ester
CAS No.	1528-64-9
Molecular Formula	C16H22O4
Molecular Weight	278.34 g/mol
Synonyms	Diisobutyl Isophthalate; 1,3-Benzenedicarboxylic Acid, Diisobutyl Ester; Diisobutyl Benzene-1,3-dicarboxylate; Isophthalic Acid Diisobutyl Ester; Diisobutyl 1,3-Benzenedicarboxylate; Isobutyl Isophthalate; DIOP (less common, verify context); Dibutyl Isophthalate Isomer
EINECS	216-208-2

Quality Control

Our Isophthalic Acid Diisobutyl Ester is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity, identity, and performance. A detailed Certificate of Analysis (COA) documenting these results is provided with each shipment to guarantee consistency and 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 strong oxidizing agents, strong acids, and strong bases.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Acidity (as Isophthalic Acid)	≤ 0.1%
Water Content (KF)	≤ 0.1%
Specific Gravity (20°C)	1.040 - 1.060
Refractive Index (20°C)	1.485 - 1.495

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