Description

4-Hydroxyphthalonitrile is a versatile aromatic nitrile derivative that serves as a critical synthetic intermediate in advanced organic chemistry. Its bifunctional structure, featuring both a phenolic hydroxyl group and two nitrile moieties, makes it a valuable precursor for constructing complex heterocyclic systems and functional materials. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors seeking to develop novel active ingredients and high-performance polymers.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of phthalocyanine-based compounds and other nitrogen-containing heterocycles with potential biological activity.
• Agrochemical Synthesis: Used in the production of advanced fungicides, herbicides, and plant growth regulators that require specific nitrile functionalities.
• Dye and Pigment Manufacturing: Serves as a precursor for phthalocyanine dyes and pigments, which are valued for their intense color, stability, and lightfastness.
• Material Science: Employed in the research and development of organic semiconductors, metal-organic frameworks (MOFs), and other functional materials.
• Chemical Research: A versatile reagent in organic synthesis for cyclization reactions and the introduction of the phthalonitrile unit into target molecules.
• Polymer Chemistry: Can be utilized as a monomer or cross-linking agent for high-temperature and specialty polymers.

Basic Information

Product Name	4-Hydroxyphthalonitrile
CAS No.	30757-50-7
Molecular Formula	C8H4N2O
Molecular Weight	144.13 g/mol
Synonyms	4-Hydroxy-1,2-benzenedicarbonitrile; 1,2-Dicyano-4-hydroxybenzene; 4-Hydroxybenzene-1,2-dicarbonitrile; 4-Hydroxyphthalodinitrile; 4-Hydroxy-o-phthalonitrile; 4-Hydroxy-1,2-dicyanobenzene; 4-Hydroxyisophthalonitrile (common misnomer); 4-HPN
EINECS	Contact for details

Quality Control

Our 4-Hydroxyphthalonitrile is manufactured under strict quality management protocols to ensure batch-to-batch consistency and high purity. We provide comprehensive analytical data, including HPLC purity, identity confirmation by FT-IR and NMR, and residual solvent analysis. A Certificate of Analysis (COA) detailing all specifications is available with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be handled under dry conditions to prevent degradation.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 98.0%
Melting Point	205 - 210 °C
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.