Description

1,4-Diisocyanato-2,3,5,6-Tetramethylcyclohexane is a specialized aliphatic diisocyanate monomer with a unique sterically hindered, symmetrical tetramethyl-substituted cyclohexane backbone. This structure is critical for synthesizing high-performance polyurethanes and polyurea coatings with exceptional light stability, chemical resistance, and mechanical properties. It is an essential building block for formulators and manufacturers in the advanced materials sector seeking to enhance product durability and performance.

Application

• High-Performance Coatings: A key raw material for light-stable, aliphatic polyurethane coatings used in automotive clear coats, industrial maintenance paints, and aerospace finishes where yellowing resistance is paramount.
• Specialty Elastomers & Sealants: Used in the production of polyurethane and polyurea elastomers that require excellent weatherability, hydrolysis resistance, and mechanical strength for demanding applications.
• Advanced Adhesives: Serves as a crosslinker in high-bond-strength, durable adhesive formulations for composites, plastics, and metals in construction and transportation.
• Optical & Electronic Materials: Employed in the synthesis of polymers for optical lenses, encapsulants, and protective coatings where clarity and long-term stability are essential.
• Chemical Intermediate: Functions as a versatile intermediate for further chemical modifications, including the synthesis of blocked isocyanates, amides, and other specialty compounds.

Basic Information

Product Name	1,4-Diisocyanato-2,3,5,6-Tetramethylcyclohexane
CAS No.	84712-83-4
Molecular Formula	C12H18N2O2
Molecular Weight	222.28 g/mol
Synonyms	1,4-Diisocyanato-2,3,5,6-tetramethyl-cyclohexane; Tetramethylcyclohexane Diisocyanate; TMCHDI; 2,3,5,6-Tetramethyl-1,4-diisocyanatocyclohexane; 1,4-Bis(isocyanato)-2,3,5,6-tetramethylcyclohexane; Dicyclohexylmethane diisocyanate derivative (tetramethyl substituted); Sterically hindered cycloaliphatic diisocyanate
EINECS	Contact for details

Quality Control

Our 1,4-Diisocyanato-2,3,5,6-Tetramethylcyclohexane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, isocyanate content, and impurity profiles. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at temperatures recommended for isocyanate handling (typically 15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under a dry inert atmosphere (e.g., nitrogen or dry air) to prevent polymerization and degradation. Keep away from heat, open flames, and incompatible materials such as alcohols, amines, and water.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (NCO Content)	≥ 99.0%
Purity (HPLC)	≥ 98.5%
Hydrolyzable Chloride	≤ 10 ppm
Total Chloride	≤ 20 ppm
Color (APHA)	≤ 30
Specific Gravity (20°C)	1.05 - 1.10
Viscosity (25°C)	Contact for details

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