Description

2,4,6-Trimethyl-1,3-Phenylene Diisocyanate is a specialized aromatic diisocyanate monomer characterized by its sterically hindered structure. This compound matters as a key building block for synthesizing high-performance polyurethanes and polyisocyanurates with enhanced thermal stability and chemical resistance. It is primarily needed by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for advanced material research.

Application

• High-Performance Polyurethane Coatings: Used as a crosslinker to produce coatings with excellent weatherability, hardness, and chemical resistance for automotive, industrial, and marine applications.
• Specialty Adhesives and Sealants: Serves as a core component in formulating adhesives with strong bonding strength and flexibility under varying thermal conditions.
• Elastomers and Thermoplastic Polyurethanes (TPU): Imparts durability and resilience to elastomeric products used in gaskets, wheels, and industrial belts.
• Polyisocyanurate (PIR) Foams: A critical raw material for producing rigid foams with superior fire resistance and thermal insulation properties for construction.
• Chemical Intermediate: Employed in organic synthesis to introduce isocyanate functionality for pharmaceuticals, agrochemicals, and specialty polymers.
• UV- and Weather-Resistant Finishes: Ideal for outdoor coatings and finishes where long-term exposure to sunlight and elements is a concern.

Basic Information

Product Name	2,4,6-Trimethyl-1,3-Phenylene Diisocyanate
CAS No.	16959-10-7
Molecular Formula	C12H12N2O2
Molecular Weight	216.24 g/mol
Synonyms	1,3-Diisocyanato-2,4,6-trimethylbenzene; TMPDI; m-Tetramethylxylylene Diisocyanate (m-TMXDI); 2,4,6-Trimethyl-m-phenylene Diisocyanate; Isocyanic Acid, 2,4,6-Trimethyl-m-phenylene Ester; Benzene, 1,3-diisocyanato-2,4,6-trimethyl-; Trimethylphenylene Diisocyanate
EINECS	Contact for details

Quality Control

Our 2,4,6-Trimethyl-1,3-Phenylene Diisocyanate is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the precise requirements of advanced polymer synthesis. Certificates of Analysis (COA) detailing purity, assay, and impurity profiles are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at temperatures between 15-25°C (59-77°F). Due to its hygroscopic and highly volatile nature, the container must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent moisture absorption and degradation. Keep away from strong bases and incompatible organic solvents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.5%
NCO Content	38.0 - 39.5 %
Hydrolyzable Chloride	≤ 0.01 %
Total Chloride	≤ 0.02 %
Viscosity (25°C)	Contact for details
Specific Gravity (25°C)	~1.18

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