Description

Dibutyl Isophthalate is a high-purity diester of isophthalic acid, valued for its excellent solvency and plasticizing properties. This compound serves as a versatile intermediate and performance additive in demanding industrial formulations. It is primarily required by manufacturers in the polymer, specialty chemical, and coatings industries seeking reliable, high-quality raw materials.

Application

• Plasticizer for Polymers: Acts as a secondary or specialty plasticizer to enhance flexibility and processability in PVC, cellulose acetate, and other resin systems.
• Solvent and Carrier: Used as a high-boiling-point solvent in specialty coatings, inks, and adhesive formulations.
• Chemical Intermediate: Serves as a key building block in the synthesis of more complex esters, polyesters, and other organic compounds.
• Lubricant Additive: Incorporated into synthetic lubricants and functional fluids to modify viscosity and improve performance characteristics.
• Cosmetic and Personal Care: Employed as an emollient and solvent in select cosmetic formulations where its properties are advantageous.
• Research & Development: Utilized in laboratory settings for chemical research, process development, and analytical applications.

Basic Information

Product Name	Dibutyl Isophthalate
CAS No.	3126-90-7
Molecular Formula	C16H22O4
Molecular Weight	278.34 g/mol
Synonyms	1,3-Benzenedicarboxylic acid, dibutyl ester; Dibutyl benzene-1,3-dicarboxylate; Isophthalic acid dibutyl ester; Di-n-butyl isophthalate; DBIP; Butyl isophthalate
EINECS	221-497-1

Quality Control

Our Dibutyl Isophthalate is manufactured under a stringent quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for identity, purity, and performance. Certificates of Analysis (COA) detailing the results are available upon request to support your quality assurance and regulatory compliance needs.

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 bases and incompatible materials such as strong oxidizing agents.

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%
Refractive Index (20°C)	1.488 - 1.492
Density (20°C)	1.040 - 1.060 g/mL

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