Description

Benzene,Diisocyanatomethyl- CAS NO 1321-38-6 is a specialized aromatic diisocyanate monomer, a critical building block in advanced polymer synthesis. Its high reactivity enables the formation of durable polyurethane and polyurea networks with tailored properties. This compound is essential for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking to develop high-performance materials.

Application

• Polyurethane Elastomers: Used as a key hard segment component to produce high-performance elastomers with excellent abrasion resistance and mechanical strength.
• Specialty Coatings & Paints: Serves as a cross-linking agent in high-durability industrial and protective coatings, offering enhanced chemical and weather resistance.
• Adhesives & Sealants: A vital raw material for formulating high-strength, flexible polyurethane adhesives and sealants used in construction and automotive assembly.
• Polyurea Spray Systems: A reactive component in fast-curing polyurea formulations for linings, membranes, and protective layers.
• Thermoset Plastics: Employed in the production of rigid and semi-rigid foams and cast plastics for industrial components.
• Chemical Intermediate: Used in organic synthesis to introduce isocyanate functionality for further chemical modifications.

Basic Information

Product Name	Benzene,Diisocyanatomethyl-
CAS No.	1321-38-6
Molecular Formula	C9H6N2O2
Molecular Weight	174.16 g/mol
Synonyms	1,3-Diisocyanatomethylbenzene; m-Xylylene Diisocyanate (m-XDI); meta-Xylylene Diisocyanate; Benzene-1,3-diylbis(methylene) diisocyanate; 1,3-Bis(isocyanatomethyl)benzene; MXDI; m-XDI; α,α',α'-Tetramethyl-m-xylene diisocyanate (related isomer)
EINECS	215-309-7

Quality Control

Our Benzene,Diisocyanatomethyl- is manufactured under strict process controls to ensure batch-to-batch consistency and high purity. Quality is verified through comprehensive analytical testing, including assay, isocyanate content, and impurity profile analysis. Certificates of Analysis (COA) documenting full specifications are provided with each shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat, sparks, and open flame. Due to its highly volatile and easily oxidized nature, it is recommended to store under an inert atmosphere (e.g., nitrogen or argon) and keep containers tightly sealed when not in use. Keep away from moisture, amines, alcohols, and other incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC or HPLC)	≥ 99.0 %
Isocyanate Content (NCO)	Contact for details
Hydrolyzable Chloride	≤ 0.01 %
Color (APHA)	≤ 50
Specific Gravity (20°C)	Contact for details
Viscosity (25°C)	Contact for details

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