Description

Quinoline CAS NO 91-22-5 is a heterocyclic aromatic organic compound, serving as a fundamental building block in advanced chemical synthesis. Its unique nitrogen-containing bicyclic structure makes it a versatile intermediate for creating complex molecules. This compound is essential for manufacturers and R&D facilities in the pharmaceutical, agrochemical, and specialty chemical industries seeking high-purity intermediates.

Application

• Pharmaceutical Intermediates: Key precursor in the synthesis of antimalarial drugs (e.g., chloroquine), antibacterial agents, and other active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators.
• Dye and Pigment Manufacturing: Acts as a starting material for cyanine dyes and other complex colorants.
• Corrosion Inhibitors: Employed in formulations to protect metals, particularly in industrial and petroleum applications.
• Catalyst and Ligand Preparation: Serves as a backbone for synthesizing specialized ligands used in homogeneous catalysis.
• Analytical Chemistry: Utilized as a reagent and solvent in various chemical analyses and separations.
• Flavor and Fragrance Industry: Intermediate for the synthesis of certain aroma chemicals.
• Research & Development: A fundamental reagent in organic chemistry research for constructing novel heterocyclic compounds.

Basic Information

Item	Detail
Product Name	Quinoline
CAS No.	91-22-5
Molecular Formula	C9H7N
Molecular Weight	129.16 g/mol
Synonyms	1-Azanaphthalene; 1-Benzazine; Benzo[b]pyridine; Chinoline; Leucol; Leukol; B-500; NSC 1771; 2,3-Benzopyridine; 2,3-Benzo[b]pyridine
EINECS	202-051-6

Quality Control

Our Quinoline is produced under a stringent quality management system to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) for every shipment, detailing key parameters such as assay, identity, and impurity profiles. Our quality commitment aligns with cGMP principles where applicable, and we support compliance with global regulatory standards including REACH.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Specific Gravity (20°C)	1.090 - 1.095
Refractive Index (n20D)	1.624 - 1.628

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