Description

Trimellitic Acid Trialkyl [C7-C9]-Ester is a high-performance, branched alkyl ester of trimellitic acid, specifically formulated with a C7-C9 alkyl chain distribution. This versatile chemical intermediate is valued for its excellent solvency, plasticizing properties, and thermal stability, making it a critical component in advanced polymer formulations. It is primarily sought by manufacturers in the plastics, coatings, and specialty chemical industries for producing high-quality, durable end-products.

Application

• As a primary or co-plasticizer in the production of flexible Polyvinyl Chloride (PVC) and other polymer systems.
• Key monomer or intermediate in the synthesis of high-performance polyester resins and alkyds for coatings.
• Solvent and processing aid in specialty adhesives and sealants formulations.
• Functional fluid or additive in high-temperature lubricants and greases.
• Intermediate for manufacturing epoxy curing agents and other cross-linking agents.
• Plasticizer for wire and cable insulation compounds requiring good electrical properties.
• Component in the production of synthetic lubricants and hydraulic fluids.

Basic Information

Product Name	Trimellitic Acid Trialkyl [C7-C9]-Ester
CAS No.	68515-60-6
Molecular Formula	Typically C33H54O6 (for C8 isomer)
Molecular Weight	~546.8 g/mol (for C8 isomer)
Synonyms	Trimellitic Acid Triester (C7-C9); Trioctyl Trimellitate (TOTM); 1,2,4-Benzenetricarboxylic Acid, Trialkyl Ester; Trimellitate Ester Plasticizer; TOTM; Tri(2-ethylhexyl) Trimellitate; Trialkylbenzene-1,2,4-tricarboxylate; Plasticizer TOTM
EINECS	Contact for details

Quality Control

Our Trimellitic Acid Trialkyl [C7-C9]-Ester is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistent purity, performance, and compliance with industry specifications. Certificates of Analysis (COA) documenting key parameters such as assay, acid value, color, and moisture content 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 at room temperature (15-25°C). Keep away from strong oxidizing agents, heat, and open flames. For long-term storage, consider under an inert atmosphere to maintain product integrity.

Specification

Item	Specification
Appearance	Clear, Colorless to Pale Yellow Viscous Liquid
Identification (IR)	Conforms
Assay (GC or HPLC)	≥ 98.0%
Acid Value (mg KOH/g)	≤ 0.1
Color (APHA)	≤ 50
Moisture (KF Titration)	≤ 0.1%
Specific Gravity (20°C)	0.980 - 0.995
Refractive Index (20°C)	1.480 - 1.490

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