Description

5-(o-Isocyanatobenzyl)-6-Methyl-m-Phenylene Diisocyanate is a specialized aromatic diisocyanate monomer featuring a unique asymmetrical structure. This compound is valued for its role as a key building block in the synthesis of high-performance polyurethane and polyurea polymers, where it imparts tailored properties such as enhanced chemical resistance and mechanical strength. It is primarily utilized by R&D chemists and formulators in the advanced coatings, adhesives, sealants, and elastomers (CASE) industries, as well as in the development of specialty polymers for demanding applications.

Application

• High-Performance Polyurethane Coatings: Serves as a core monomer for formulating advanced industrial, marine, and protective coatings with superior durability and chemical resistance.
• Specialty Adhesives and Sealants: Used to develop high-strength, flexible adhesives and sealants for automotive, aerospace, and construction applications.
• Elastomer Synthesis: A critical component in the production of cast, thermoplastic, and millable polyurethane elastomers requiring specific thermal and mechanical profiles.
• Polyurea Spray Systems: Employed in fast-curing polyurea formulations for linings, waterproofing membranes, and protective layers.
• Polymer Modification and Cross-linking: Acts as a cross-linking agent or modifier for other polymers to enhance properties like hardness, thermal stability, and solvent resistance.
• R&D and Pharmaceutical Intermediates: Utilized in research laboratories for synthesizing novel polymer architectures and potentially as an intermediate in pharmaceutical chemistry.

Basic Information

Product Name	5-(o-Isocyanatobenzyl)-6-Methyl-m-Phenylene Diisocyanate
CAS No.	94166-84-4
Molecular Formula	C17H12N2O2
Molecular Weight	276.29 g/mol
Synonyms	5-(2-Isocyanatobenzyl)-6-methyl-1,3-phenylene diisocyanate; 6-Methyl-5-(2-isocyanatobenzyl)-1,3-phenylene diisocyanate; 5-(o-Isocyanatobenzyl)-6-methyl-m-phenylene diisocyanate; 1,3-Diisocyanato-5-(2-isocyanatobenzyl)-2-methylbenzene; Asymmetric aromatic triisocyanate intermediate; BAYTEC® ME 210 (related trade series); Desmodur® derivative (related trade series)
EINECS	Contact for details

Quality Control

Our production of 5-(o-Isocyanatobenzyl)-6-Methyl-m-Phenylene Diisocyanate adheres to stringent quality protocols to ensure batch-to-batch consistency and purity for demanding synthesis applications. Each lot is analyzed using advanced techniques including HPLC, GC, and titration to confirm critical parameters such as isocyanate content, purity, and the absence of hydrolyzable chlorides. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 2°C and 8°C (under refrigeration) or as specified on the label to maximize shelf-life and prevent polymerization. This material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen or argon) after opening to exclude moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Purity (HPLC)	≥ 98.0%
Isocyanate Content (NCO)	Contact for details
Hydrolyzable Chloride	≤ 0.1%
Specific Gravity (20°C)	~1.2 g/cm³
Viscosity (25°C)	Contact for details

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