Description

1,3-Cyclohexylenediisocyanate is a versatile aliphatic diisocyanate monomer used in the synthesis of high-performance polymers. Its saturated cycloaliphatic structure provides excellent light stability and resistance to yellowing, making it a critical component for durable, weather-resistant coatings and materials. This product is essential for manufacturers in the polyurethane, coatings, and specialty adhesives industries seeking to enhance product longevity and performance under demanding environmental conditions.

Application

• Light-Stable Polyurethane Coatings: A key raw material for automotive clear coats, industrial maintenance paints, and exterior architectural coatings that require exceptional UV and weather resistance.
• High-Performance Elastomers: Used in the production of polyurethane elastomers for applications demanding hydrolytic stability and mechanical strength, such as rollers, seals, and industrial tires.
• Specialty Adhesives and Sealants: Formulation of non-yellowing, durable adhesives and sealants for the construction, aerospace, and marine sectors.
• Polyurethane Dispersions (PUDs): Synthesis of waterborne polyurethane dispersions for environmentally friendly coatings and finishes on textiles, leather, and plastics.
• Crosslinking Agent: Serves as a crosslinker for hydroxyl-functional resins to improve chemical resistance, hardness, and overall film properties.
• Optical and Electronic Materials: Production of transparent, durable polymers for optical lenses, encapsulants, and protective films in electronic devices.

Basic Information

Product Name	1,3-Cyclohexylenediisocyanate
CAS No.	7373-23-1
Molecular Formula	C8H10N2O2
Molecular Weight	166.18 g/mol
Synonyms	1,3-Diisocyanatocyclohexane; CHDI; H6XDI; Cyclohexane-1,3-diyl diisocyanate; 1,3-Cyclohexane Diisocyanate; 1,3-Bis(isocyanato)cyclohexane; NSC 5221; Hydrogenated Xylene Diisocyanate (partial)
EINECS	230-924-9

Quality Control

Our 1,3-Cyclohexylenediisocyanate is manufactured under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot is analyzed against rigorous internal specifications, which typically include assay, isocyanate content, and impurity profile determination. A Certificate of Analysis (COA) detailing all test results is provided with every shipment 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 temperatures between 15°C and 25°C (59°F and 77°F). This product is hygroscopic (moisture-sensitive) and must be kept under a dry inert atmosphere (e.g., nitrogen) to prevent reaction with atmospheric moisture. Keep away from heat, sparks, open flames, and incompatible materials such as alcohols, amines, and strong bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 99.0 %
Isocyanate Content (NCO)	49.0 - 51.0 %
Hydrolyzable Chloride	≤ 50 ppm
Total Chloride	≤ 100 ppm
Viscosity (at 25°C)	Contact for details
Density (at 20°C)	~1.15 g/cm³

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