Description

Octahydro-4,7-Methano-1H-Indenedimethyl Diisocyanate is a specialized alicyclic diisocyanate monomer, a key building block for high-performance polyurethane and polyurea materials. Its unique saturated, bridged-ring structure provides exceptional resistance to yellowing and degradation from UV light and heat, making it critical for applications demanding long-term clarity and durability. This product is essential for formulators and manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking to enhance product lifespan and performance.

Application

• High-Performance Coatings: Used in automotive clear coats, industrial maintenance paints, and aerospace coatings where superior gloss retention and weatherability are required.
• Light-Stable Elastomers: A key component in the production of polyurethane and polyurea elastomers for outdoor applications, such as stadium seats, conveyor belts, and roll covers.
• Advanced Adhesives & Sealants: Formulated into adhesives and sealants for construction, automotive, and marine applications that must withstand prolonged exposure to sunlight and harsh environments.
• Optical-Grade Polyurethanes: Serves as a critical raw material for producing transparent, non-yellowing polyurethane lenses, films, and optical encapsulants.
• Specialty Resins: Employed in the synthesis of specialty polyisocyanurate foams and other polymers requiring enhanced thermal and hydrolytic stability.

Basic Information

Product Name	Octahydro-4,7-Methano-1H-Indenedimethyl Diisocyanate
CAS No.	28807-72-9
Molecular Formula	C₁₃H₁₈N₂O₂
Molecular Weight	234.29 g/mol
Synonyms	Dimethyl Derivative of Hydrogenated MDI (H12MDI); 4,4'-Dicyclohexylmethane Diisocyanate (Hydrogenated); Bis(4-isocyanatocyclohexyl)methane; HMDI; H12MDI; Hydrogenated Methylene Diphenyl Diisocyanate; Alicyclic Diisocyanate; Desmodur W (Trade Name)
EINECS	Contact for details

Quality Control

Our Octahydro-4,7-Methano-1H-Indenedimethyl Diisocyanate is manufactured under a stringent quality management system. Every batch undergoes rigorous analytical testing, including assay by titration, isocyanate content determination, and impurity profiling, to ensure it meets precise specifications for high-purity diisocyanate applications. Certificates of Analysis (COA) are provided with each shipment, and we support compliance with relevant global regulatory frameworks such as REACH.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 15°C and 25°C (59°F and 77°F). This material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) after opening to prevent reaction with atmospheric moisture and carbon dioxide.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Assay (NCO Content)	≥ 99.0 %
Purity (HPLC)	≥ 98.5 %
Hydrolyzable Chloride	≤ 10 ppm
Viscosity @ 25°C	Contact for details
Specific Gravity @ 25°C	Contact for details

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