Description

1,2-Benzenedicarboxylic Acid, Di-C9-11-Branched And Linear Alkyl Esters is a high-performance, high-molecular-weight phthalate ester plasticizer. This compound is engineered to provide superior permanence and low volatility in demanding polymer applications. It is a critical material for manufacturers in the plastics, coatings, and adhesives industries seeking to enhance the flexibility and durability of their products.

Application

• Primary Plasticizer for PVC: Imparts excellent flexibility, low-temperature performance, and low volatility to polyvinyl chloride (PVC) compounds used in wire & cable insulation, automotive interiors, and synthetic leather.
• Polymer Modifier for Sealants and Adhesives: Enhances the workability, elongation, and long-term elasticity of various polymer-based sealants and adhesive formulations.
• Coalescing Agent and Plasticizer for Coatings: Used in specialty coatings and inks to improve film formation, adhesion, and flexibility while reducing brittleness.
• Functional Fluid and Lubricant Additive: Serves as a base or additive in synthetic lubricants and functional fluids due to its thermal stability and low pour point.
• Rubber Processing Aid: Acts as a processing aid and softener in certain rubber compounds to improve mixing and mold flow.

Basic Information

Product Name	1,2-Benzenedicarboxylic Acid, Di-C9-11-Branched And Linear Alkyl Esters
CAS No.	68515-43-5
Molecular Formula	Typically C26H42O4 to C30H50O4 (Isomer mixture)
Molecular Weight	~418 - 474 g/mol (Average)
Synonyms	DINP (Diisononyl Phthalate, general); Phthalic Acid, Di-C9-11 Alkyl Esters; 1,2-Benzenedicarboxylic Acid, Diisononyl Ester (mixed isomers); Di(isononyl) Phthalate; DINP (C9-C11); Plasticizer DINP; Jayflex DINP; Palatinol N; Unimoll 66
EINECS	271-090-9

Quality Control

Our 1,2-Benzenedicarboxylic Acid, Di-C9-11-Branched And Linear Alkyl Esters is manufactured under a stringent quality management system. Every batch is tested against rigorous internal specifications to ensure consistent performance, purity, and compliance with relevant industry standards. A comprehensive Certificate of Analysis (COA) detailing key parameters such as assay, color, acidity, and specific gravity is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from strong acids, strong oxidizers, and heat sources. 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	Clear, Colorless to pale yellow viscous liquid
Identification (IR)	Conforms
Assay (GC)	≥ 99.0%
Color (Pt-Co)	≤ 30
Acidity (as Phthalic Acid)	≤ 0.01%
Water Content (KF)	≤ 0.05%
Specific Gravity (20/20°C)	0.970 - 0.978
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.