Description

2,4-Dioxo-1,3-Diazetidine-1,3-Diylbis(p-Phenylenethio-o-Phenylene) Diisocyanate is a specialized, high-performance aromatic diisocyanate monomer featuring a unique heterocyclic core. This compound is engineered to deliver enhanced thermal stability and tailored reactivity for the synthesis of advanced polymeric materials. It is primarily sought by R&D chemists and formulators in the high-performance coatings, specialty adhesives, and advanced elastomer industries where superior material properties are critical.

Application

• High-Performance Polyurethane Coatings: As a key monomer for formulating coatings with exceptional chemical resistance, thermal stability, and durability for industrial and automotive applications.
• Specialty Adhesives and Sealants: Used to create adhesives with high bond strength and flexibility under demanding environmental conditions.
• Advanced Elastomers and Thermoplastic Polyurethanes (TPU): Imparts enhanced mechanical properties and heat resistance to elastomeric materials used in seals, gaskets, and specialty components.
• Crosslinking Agent for Polymers: Functions as a reactive crosslinker to improve the hardness, modulus, and solvent resistance of various polymer systems.
• Chemical Intermediate for Specialty Synthesis: Serves as a building block in organic synthesis for pharmaceuticals, agrochemicals, and other fine chemicals requiring its unique structural motif.
• Composite Materials: Incorporated into resin matrices for fiber-reinforced composites that require high performance in aerospace or electronics.

Basic Information

Product Name	2,4-Dioxo-1,3-Diazetidine-1,3-Diylbis(p-Phenylenethio-o-Phenylene) Diisocyanate
CAS No.	85818-49-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	1,3-Bis(4-isocyanatophenylthio)-2,4-dioxo-1,3-diazetidine; Bis(4-isocyanatophenylthio)-2,4-dioxo-1,3-diazetidine; 2,4-Dioxo-1,3-diazetidine-1,3-diyl bis(4-isocyanatophenyl) sulfide; Diisocyanate derived from 1,3-bis(4-aminophenylthio)-2,4-diazetidinedione; Aromatic heterocyclic diisocyanate monomer; Bis(p-isocyanatophenylthio)-2,4-dioxodiazetidine
EINECS	Contact for details

Quality Control

Our production of 2,4-Dioxo-1,3-Diazetidine-1,3-Diylbis(p-Phenylenethio-o-Phenylene) Diisocyanate adheres to stringent quality protocols. Each batch undergoes rigorous analytical testing to ensure consistency, purity, and performance. Certificates of Analysis (COA) detailing key specifications such as assay, isocyanate content, and impurity profiles are 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. Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed under a dry inert atmosphere (e.g., nitrogen or argon) to prevent degradation from atmospheric moisture. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Isocyanate Content (NCO%)	Contact for details
Melting Point	Contact for details
Moisture (KF)	≤ 0.5%

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