Description

2-Isocyanato-4-(3-Isocyanato-4-Methyl-Phenyl)Sulfonyl-1-Methyl-Benzene is a specialized aromatic diisocyanate compound, serving as a critical building block for high-performance polymers. Its value lies in providing a rigid, sulfone-containing backbone that imparts exceptional thermal stability, chemical resistance, and mechanical strength to the final materials. This product is essential for R&D chemists and manufacturers in the advanced materials sector, particularly for developing specialized polyurethanes, polyureas, and other thermosetting resins for demanding industrial applications.

Application

• Advanced Polyurethane Synthesis: As a core monomer for producing high-temperature resistant and chemically stable polyurethane elastomers, coatings, and adhesives.
• Specialty Polyurea Systems: Used in formulating fast-curing, abrasion-resistant polyurea linings and spray coatings for industrial protection.
• Thermoset Polymer Networks: A key cross-linking agent for creating dense, high-performance polymer networks with enhanced rigidity and thermal properties.
• Composite Material Production: Incorporated into matrix resins for fiber-reinforced composites used in aerospace, automotive, and electrical industries.
• Chemical Intermediate: Serves as a precursor for further chemical modifications, enabling the synthesis of novel polymers with tailored functionalities.
• High-Performance Coatings: Formulation of industrial and protective coatings that require superior durability against chemicals, heat, and environmental stress.

Basic Information

Product Name	2-Isocyanato-4-(3-Isocyanato-4-Methyl-Phenyl)Sulfonyl-1-Methyl-Benzene
CAS No.	6338-92-7
Molecular Formula	C16H12N2O4S
Molecular Weight	328.34 g/mol
Synonyms	Bis(3-isocyanato-4-methylphenyl) sulfone; 4,4'-Diosocyanato-3,3'-dimethyldiphenyl sulfone; DIDS (Diosocyanato Diphenyl Sulfone derivative); 3,3'-Dimethyl-4,4'-diosocyanatodiphenyl sulfone; Sulfonated diisocyanate; S-DIDS; 1-Methyl-2-isocyanato-4-[(3-isocyanato-4-methylphenyl)sulfonyl]benzene; Bis(4-methyl-3-isocyanatophenyl) sulfone
EINECS	Contact for details

Quality Control

Our production of 2-Isocyanato-4-(3-Isocyanato-4-Methyl-Phenyl)Sulfonyl-1-Methyl-Benzene adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing to ensure consistent purity, reactivity, and performance. Certificates of Analysis (COA) detailing key parameters such as assay, isocyanate content, and impurity profiles are provided and available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under a dry inert atmosphere (e.g., nitrogen or argon) to prevent reaction with atmospheric moisture, which can lead to polymerization or gelation. Keep away from heat, sparks, open flames, and incompatible materials such as alcohols, amines, and strong bases.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (NCO Content)	≥ 98.0%
Purity (HPLC)	≥ 98.0%
Hydrolyzable Chloride	≤ 0.1%
Melting Point	Contact for details
Moisture (Karl Fischer)	≤ 0.1%

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