Description

1,4-Dicyanobenzene is a high-purity aromatic dinitrile compound, serving as a critical building block in advanced organic synthesis. Its rigid, symmetrical structure and dual cyano functionality make it an essential precursor for high-performance polymers and specialty chemicals. This compound is primarily utilized by manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors seeking to develop products with enhanced thermal stability and specific electronic properties.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring a para-substituted benzene core.
• Polymer & Resin Manufacturing: Serves as a monomer or cross-linking agent for producing high-temperature resistant polymers, such as polyimides and polyamides.
• Agrochemical Synthesis: Used in the manufacture of herbicides, fungicides, and other crop protection agents where its aromatic structure provides stability.
• Liquid Crystal & Electronic Materials: Acts as a fundamental building block for liquid crystal displays (LCDs) and organic light-emitting diodes (OLEDs) due to its planar geometry.
• Dye & Pigment Production: Intermediate for synthesizing advanced organic dyes and pigments, including phthalocyanines.
• Metal-Organic Framework (MOF) Synthesis: Utilized as an organic linker in the construction of porous coordination polymers for gas storage and catalysis.
• Research & Development: A valuable reagent in academic and industrial R&D for exploring new organic reactions and material properties.

Basic Information

Product Name	1,4-Dicyanobenzene
CAS No.	623-26-7
Molecular Formula	C8H4N2
Molecular Weight	128.13 g/mol
Synonyms	p-Dicyanobenzene; Terephthalonitrile; 1,4-Benzenedicarbonitrile; p-Phthalodinitrile; Terephthalic Acid Dinitrile; p-Benzenedicarbonitrile; TPN; 1,4-Dicyanobenzol
EINECS	210-782-3

Quality Control

Our 1,4-Dicyanobenzene is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, identity, and impurity profiles. Our quality commitment aligns with cGMP principles where applicable, and we support our global customers with the documentation required for their regulatory compliance (e.g., REACH).

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 nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product quality. Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.5%
Melting Point	220 - 224 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1%

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