Description

4-Hydroxyisophthalonitrile is a versatile aromatic nitrile derivative that serves as a critical building block in advanced organic synthesis. Its bifunctional structure, featuring both a phenolic hydroxyl and two nitrile groups, makes it a valuable precursor for creating complex heterocyclic compounds and high-performance polymers. This intermediate is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries seeking to develop new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds with complex heterocyclic cores.
• Agrochemical Synthesis: Building block for developing novel herbicides, fungicides, and plant growth regulators.
• Polymer & Resin Production: Monomer for the manufacture of high-performance engineering plastics, specialty polyamides, and heat-resistant resins.
• Dye & Pigment Manufacturing: Intermediate in the production of advanced organic pigments and colorants.
• Ligand & Chelating Agent Synthesis: Used to create sophisticated ligands for catalysis and metal complexation applications.
• Research & Development: Valuable compound for academic and industrial R&D in medicinal chemistry and material science.

Basic Information

Product Name	4-Hydroxyisophthalonitrile
CAS No.	34133-58-9
Molecular Formula	C8H4N2O
Molecular Weight	144.13 g/mol
Synonyms	4-Hydroxybenzene-1,3-dicarbonitrile; 1,3-Dicyano-4-hydroxybenzene; 4-Hydroxy-1,3-benzenedicarbonitrile; 4-Hydroxyisophthalic acid dinitrile; Isophthalonitrile, 4-hydroxy-; 4-Cyanophenol-3-carbonitrile
EINECS	Contact for details

Quality Control

Our 4-Hydroxyisophthalonitrile is produced under a stringent quality management system to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and purity determination, to meet exacting customer specifications. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting all critical quality attributes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents, strong acids, and strong bases.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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