Description

1,4-Phenylene Diisocyanate is a high-purity aromatic diisocyanate monomer essential for the synthesis of specialized polymers. This compound is a critical building block for creating materials with enhanced thermal stability, chemical resistance, and mechanical properties. It is primarily sought by manufacturers in the polyurethane, coatings, and advanced materials sectors for research and production.

Application

• Polymer Synthesis: A key monomer for producing high-performance polyurethanes, polyureas, and polyisocyanurates.
• Coatings & Adhesives: Used in formulating specialty coatings, sealants, and adhesives that require excellent durability and chemical resistance.
• Elastomers: Serves as a cross-linking agent in the manufacture of industrial and automotive elastomers.
• Advanced Materials: Employed in the research and development of novel polymeric materials, including composites and engineering plastics.
• Chemical Intermediate: Acts as a versatile intermediate in organic synthesis for pharmaceuticals and agrochemicals.
• Automotive & Aerospace: Used in components requiring lightweight, strong, and thermally stable materials.

Basic Information

Product Name	1,4-Phenylene Diisocyanate
CAS No.	104-49-4
Molecular Formula	C8H4N2O2
Molecular Weight	160.13 g/mol
Synonyms	p-Phenylene Diisocyanate; PPDI; 1,4-Diisocyanatobenzene; Benzene-1,4-diyl diisocyanate; 4-Isocyanatophenyl isocyanate; NSC 406079; UN 2489
EINECS	203-207-3

Quality Control

Our 1,4-Phenylene Diisocyanate is manufactured under stringent quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards and consistent performance for industrial applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and compliance.

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, containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent degradation. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	94 - 97 °C
Hydrolyzable Chlorine	≤ 0.1%
Total Chlorine	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm

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