QUINOLINE

PRODUCT IDENTIFICATION

CAS NO. 91-22-5

QUINOLINE

EINECS NO. 202-051-6
FORMULA C9H7N
MOL WT. 129.16
H.S. CODE 2933.40

TOXICITY

Oral rat LD50: 331 mg/kg
SYNONYMS Benzopyridine; Benzo[b]Pyridine; Leucol; Leukol;
Quinolin; 1-Azanaphthalene; 1-Benzazine; 1-Benzine; Chinoline; Chinoleine; Chinolin; Leucoline; Chinolin (German); Quinolina (Spanish); Quinoléine (French);
SMILES coal tar, aniline or quinine

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE yellowish oily liquid
MELTING POINT 26 - 28 C
BOILING POINT 237 - 243 C
SPECIFIC GRAVITY 1.08 - 1.095
SOLUBILITY IN WATER Slightly soluble

SOLVENT SOLUBILITY

Soluble in alcohol, ether, and carbon disulfide
AUTOIGNITION

400 C

pH

 

VAPOR DENSITY  
NFPA RATINGS Health: 2; Flammability: 1; Reactivity: 0
FLASH POINT

101 C

STABILITY Stable under ordinary conditions. Light sensitive.

GENERAL DESCRIPTION AND APPLICATIONS

Quinoline, 1-azanaphthalene, is an aromatic nitrogen compound characterized by a solid-ring structure contains a benzene fused to pyridine at two adjacent carbon atoms. (Pyridine is a ring structure compound of five carbon atoms with a nitrogen atom). Quinoline itself is the simplest member of the quinoline. It is a hygroscopic, yellowish oily liquid; slightly soluble in water, soluble alcohol, ether, carbon disulfide and readily in many organic solvents. It can be obtained by the distillation of coal tar. Quinoline can be prepared from aniline with acrolein under heated sulfuric acid (Skraup synthesis). Various quinoline compounds can be prepared by Skraup synthesis series of different oxidizing agents. Isoquinoline differs from quinoline in nitrogen position (at 2). Quinoline family compounds are widely used as a parent compound to make drugs (especially anti-malarial medicines), fungicides, biocides, alkaloids, dyes, rubber chemicals and flavoring agents. They have antiseptic, antipyretic, and antiperiodic properties. They are also used as catalyst, corrosion inhibitor, preservative, and as solvent for resins and terpenes. They are used in transition-metal complex catalyst chemistry for uniform polymerization and luminescence chemistry. They are used as antifoaming agent in refinery field. Quinaldine, 2-methylquinoline, is used as an anti-malaria and preparing other anti-malaria drugs. It is used in manufacturing oil soluble dyes, food colorants, pharmaceuticals, pH indicators and other organic compounds. Quinaldic Acid is a carboxylic acid substituted quinoline at 2 position, a catabolite of tryptophan (aromatic side chain amino acid). Quinazoline, diazanaphthalene at 1,3 positions, is used as a chemical intermediate for making medicines and other organic compounds. It is a fundamental structure in some antihypertensive agents such as prazosin and doxazosin which are peripheral vasodilator. Quinoxaline, diazanaphthalene at 1,4 positions, is used as a chemical intermediate for making fungicides and other organic compounds.
SALES SPECIFICATION

APPEARANCE

yellow oily liquid or semi-solid
ASSAY

93% min

TRANSPORTATION
PACKING 200ks in drum
HAZARD CLASS 6.1 (Packing Group: III)
UN NO. 2656
OTHER INFORMATION
Hazard Symbols: XN, Risk Phrases: 21/22, Safety Phrases: 26-36/37395

 

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