Description

2,2',5,5'-Tetrachloro-4,4'-Diisocyanato-1,1'-Biphenyl is a specialized aromatic diisocyanate monomer featuring a halogenated biphenyl core. This compound is valued for its role as a high-performance building block in polymer synthesis, where it imparts enhanced thermal stability, chemical resistance, and flame retardancy to the final materials. It is primarily sought by R&D chemists and material scientists in the advanced polymer, specialty coatings, and high-temperature adhesive industries.

Application

• High-Performance Polyurethane & Polyurea Elastomers: Serves as a key monomer for synthesizing elastomers with superior thermal and chemical resistance for demanding industrial applications.
• Specialty Coatings and Adhesives: Used in formulating advanced coatings and adhesives that require excellent durability, weatherability, and flame-retardant properties.
• Flame-Retardant Polymer Additives: Incorporated as a reactive intermediate in the production of flame-retardant additives for plastics and textiles.
• Advanced Material Research (R&D): A critical reagent for academic and industrial research focused on developing novel polymers with tailored properties.
• Cross-linking Agent for Resins: Functions as an effective cross-linker to enhance the mechanical strength and thermal stability of various resin systems.

Basic Information

Product Name	2,2',5,5'-Tetrachloro-4,4'-Diisocyanato-1,1'-Biphenyl
CAS No.	76806-34-3
Molecular Formula	C14H4Cl4N2O2
Molecular Weight	394.01 g/mol
Synonyms	3,3',6,6'-Tetrachlorobiphenyl-4,4'-diisocyanate; Tetrachlorobenzidine Diisocyanate; 4,4'-Diisocyanato-3,3',6,6'-tetrachlorobiphenyl; TCBDI; Biphenyl-4,4'-diisocyanate, 2,2',5,5'-tetrachloro-; NSC 334906
EINECS	Contact for details

Quality Control

Our production of 2,2',5,5'-Tetrachloro-4,4'-Diisocyanato-1,1'-Biphenyl adheres to stringent internal quality protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including HPLC, GC, and NMR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance and R&D processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation from moisture. Keep away from heat, sparks, and open flame.

Specification

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

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