Description

Isophthalic Acid, n-Octyl Ester is a high-purity organic ester derived from isophthalic acid and n-octanol, serving as a versatile chemical intermediate and specialty additive. Its molecular structure provides excellent solvency and plasticizing properties, making it valuable for modifying polymer characteristics and enhancing material performance. This product is essential for manufacturers in the plastics, coatings, and specialty chemical industries seeking reliable, high-quality raw materials for advanced formulations.

Application

• As a specialty plasticizer and co-monomer in the production of high-performance polymers and resins.
• As a chemical intermediate in the synthesis of advanced lubricants and functional fluids.
• As a modifier in coating formulations to improve flexibility, adhesion, and durability.
• As a solvent or processing aid in the manufacture of specialty adhesives and sealants.
• In research and development for creating novel polymeric materials with tailored properties.
• As a component in the formulation of heat-resistant and chemically stable composite materials.

Basic Information

Product Name	Isophthalic Acid, n-Octyl Ester
CAS No.	4654-18-6
Molecular Formula	C24H38O4
Molecular Weight	390.56 g/mol
Synonyms	1,3-Benzenedicarboxylic acid, dioctyl ester; Dioctyl isophthalate; DOIP; n-Octyl isophthalate; Isophthalic acid dioctyl ester; Benzene-1,3-dicarboxylic acid dioctyl ester; Octyl isophthalate; Di-n-octyl isophthalate
EINECS	225-090-8

Quality Control

Our Isophthalic Acid, n-Octyl Ester is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for identity, purity, and performance. A Certificate of Analysis (COA) detailing the results is provided with every shipment to guarantee traceability and compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids and oxidizing agents. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F). Keep container tightly sealed when not in use to minimize moisture absorption and contamination.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Acid Value	≤ 1.0 mg KOH/g
Moisture (KF)	≤ 0.1%
Color (APHA)	≤ 50
Specific Gravity (20°C)	0.970 - 0.990
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.