Description

1,3-Bis(Isocyanatomethyl)Benzene is a high-purity aromatic diisocyanate monomer, a critical building block in advanced polymer synthesis. Its value lies in its ability to impart superior thermal stability, chemical resistance, and mechanical strength to the final polymeric materials. This compound is essential for manufacturers in the polyurethane, coatings, adhesives, and specialty elastomer industries seeking to develop high-performance products.

Application

• Polyurethane Elastomers: A key raw material for producing high-performance, wear-resistant elastomers used in industrial wheels, rollers, and seals.
• Coatings and Paints: Serves as a cross-linking agent in high-durability industrial and automotive coatings, providing excellent gloss retention and chemical resistance.
• Adhesives and Sealants: Used in formulating high-strength, flexible adhesives and sealants for construction, automotive assembly, and aerospace applications.
• Specialty Foams: Employed in the synthesis of rigid and microcellular foams requiring enhanced thermal and dimensional stability.
• Polyurea Coatings: A vital component in fast-curing polyurea spray coatings for industrial flooring, tank linings, and waterproofing membranes.
• Chemical Intermediates: Acts as a precursor for further chemical synthesis, including the production of blocked isocyanates and other specialty chemicals.

Basic Information

Product Name	1,3-Bis(Isocyanatomethyl)Benzene
CAS No.	53208-23-4
Molecular Formula	C10H8N2O2
Molecular Weight	188.18 g/mol
Synonyms	1,3-Bis(isocyanatomethyl)benzene; m-Xylylene Diisocyanate (m-XDI); m-XDI; 1,3-Diisocyanatomethylbenzene; Benzene, 1,3-bis(isocyanatomethyl)-; Isocyanic acid, methylene-m-phenylene ester; Meta-Xylylene Diisocyanate; MXDI
EINECS	258-426-5

Quality Control

Our 1,3-Bis(Isocyanatomethyl)Benzene is manufactured under stringent quality management systems. Each batch undergoes rigorous analytical testing, including assay, isocyanate content, and impurity profile analysis, to ensure it meets exacting industry standards. Certificates of Analysis (COA) documenting purity and key specifications are provided with every shipment to guarantee supply consistency and product reliability for your critical processes.

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). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent moisture ingress and polymerization. Keep away from heat, 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)	44.5 - 45.5 %
Hydrolyzable Chlorine	≤ 0.01 %
Total Chlorine	≤ 0.05 %
Viscosity (at 25°C)	≤ 10 mPa·s
Specific Gravity (at 25°C)	1.20 - 1.22

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