Description

4-Hydroxyquinoline is a versatile heterocyclic organic compound that serves as a critical building block in advanced chemical synthesis. Its unique quinoline structure with a hydroxyl substituent makes it a valuable intermediate for creating complex molecules with specific biological and chemical activities. This compound is essential for research and production in the pharmaceutical, agrochemical, and specialty chemical industries, where it is used to develop active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of various active pharmaceutical ingredients (APIs), including antimalarial and antibacterial agents.
• Agrochemical Synthesis: Used in the production of pesticides, herbicides, and fungicides, leveraging its bioactive quinoline core.
• Metal Chelation & Corrosion Inhibition: Acts as a ligand for metal ions, finding applications in metal extraction processes and as a component in corrosion inhibitor formulations.
• Dye & Pigment Manufacturing: Serves as an intermediate for the synthesis of complex dyes and organic pigments.
• Research & Development: A fundamental reagent in organic chemistry research for constructing novel heterocyclic compounds and studying reaction mechanisms.
• Photographic Chemicals: Used in the formulation of certain photographic developers and sensitizers.

Basic Information

Product Name	4-Hydroxyquinoline
CAS No.	529-37-3
Molecular Formula	C9H7NO
Molecular Weight	145.16 g/mol
Synonyms	4-Quinolinol; Quinolin-4-ol; 4-Quinolol; 4-Hydroxyquinoline; 4-Quinolinone (tautomer); Hydroxyquinoline; 4-HQ; 529-37-3; NSC 3778; UNII-9FZQ36E87I
EINECS	208-466-2

Quality Control

Our 4-Hydroxyquinoline is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. We provide comprehensive quality documentation, including detailed Certificates of Analysis (COA) for each lot, which specify purity, identity, and impurity profiles. Our quality control protocols are designed to meet the stringent requirements of our global customer base in research and industrial synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials. For long-term storage, consider an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	195°C - 205°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.