Description

Diisoheptyl Phthalate is a high-molecular-weight phthalate ester plasticizer, identified by CAS NO 71888-89-6. It is valued for its excellent compatibility with a wide range of polymers, providing enhanced flexibility, durability, and processability to finished products. This compound is primarily sought by manufacturers in the plastics, coatings, and specialty chemical industries for formulating high-performance materials.

Application

• Primary plasticizer for PVC (polyvinyl chloride) and other vinyl polymers to improve flexibility and elongation.
• Key component in the formulation of flexible vinyl products such as cables, wires, hoses, and synthetic leather.
• Used in adhesive and sealant formulations to adjust rheological properties and enhance film formation.
• Plasticizer for polymer coatings and inks, contributing to improved adhesion and surface finish.
• Intermediate in the synthesis of specialty lubricants and functional fluids.
• Modifier for elastomers and rubber compounds to achieve desired softness and low-temperature performance.

Basic Information

Product Name	Diisoheptyl Phthalate
CAS No.	71888-89-6
Molecular Formula	C22H34O4
Molecular Weight	362.50 g/mol
Synonyms	1,2-Benzenedicarboxylic acid, diisoheptyl ester; Diisoheptyl phthalate; DIHP; Phthalic acid, diisoheptyl ester; Jayflex DIHP; Palatinol DIHP; Unimoll DIHP; Vestinol DIHP
EINECS	Contact for details

Quality Control

Our Diisoheptyl Phthalate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise chemical and physical specifications for industrial applications. Certificates of Analysis (COA) documenting purity, identity, and key parameters 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 away from heat sources and incompatible materials. Recommended storage temperature is between 15°C and 25°C. Keep container tightly sealed when not in use to minimize moisture absorption and contamination.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 99.0%
Acidity (as Phthalic Acid)	≤ 0.01%
Color (APHA)	≤ 30
Water Content (KF)	≤ 0.05%
Specific Gravity (20/20°C)	0.970 - 0.980
Refractive Index (20°C)	1.483 - 1.487

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