Description

5,5'-Ureylenedi-o-Tolyl Diisocyanate is a specialized aromatic diisocyanate monomer, a key building block in polymer chemistry. This compound matters for its role as a cross-linking agent, enabling the synthesis of high-performance polyurethanes and polyureas with tailored properties. Industries such as specialty coatings, advanced adhesives, and high-resilience elastomers need this chemical to develop materials with enhanced durability, chemical resistance, and mechanical strength.

Application

• Primary cross-linking agent in the synthesis of high-performance polyurethane (PU) elastomers and coatings.
• Key monomer for producing specialized polyurea coatings with exceptional abrasion and chemical resistance.
• Used in formulating advanced adhesives and sealants for automotive and industrial applications.
• Essential component in the manufacture of thermosetting plastics and composite materials.
• Employed in R&D for developing novel polymer systems with specific thermal and mechanical properties.
• Used in the production of specialty foams and binders.

Basic Information

Product Name	5,5'-Ureylenedi-o-Tolyl Diisocyanate
CAS No.	5206-52-0
Molecular Formula	C₁₇H₁₄N₄O₃
Molecular Weight	322.32 g/mol
Synonyms	1,1'-(Carbonylbis(azanediyl))bis(2-methylbenzene-4,1-diyl) diisocyanate; Bis(4-isocyanato-3-methylphenyl)urea; Ureylene bis(o-tolyl isocyanate); Ureylenedi-o-tolylene diisocyanate; o-Tolyl diisocyanate urea; 4,4'-Diisocyanato-3,3'-dimethylcarbanilide; UTD; Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our 5,5'-Ureylenedi-o-Tolyl Diisocyanate is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements of industrial polymer synthesis. A comprehensive Certificate of Analysis (COA) detailing assay, purity, and impurity profiles is available for each lot upon request.

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); containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Moisture (KF)	≤ 0.5%
Heavy Metals	< 10 ppm

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