Detailed Product Description

Quinoline.

Usage           .     Medical and Chemical Industry

Transportation     

PACKING               yellow oily liquid or semi-solid

Storage Condition

Dry and aeration, and avoid high temperature and direct sunlight

COA & Sales Specification  

INDUSTRY GRADE    

APPEARANCE                yellow oily liquid or semi-solid

ASSAY (DRY BASIS)           93% min

LOOSE ON DRYING         

Guarantee peroid            

CAS No.                    91-22-5

Molecular Formula        C₉H₇N

Molecular Weight         129.16

Physical & Chemical Character        

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                       5.97(Isoelectric point)

STABILITY                Stable under ordinary conditions. Light sensitive.

More Information        

Quinoline, 1-azanaphthalene, is an aromatic nitrogen compound characterized by a double-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..