2-Methylquinoline

　　Main Uses

　　Pharmaceutical Field:

　　Antimalarial Drug Intermediate: Used to synthesize the side chain structures of antimalarial drugs such as Chloroquine and Amodiaquine.

　　Photothermal Therapy Material: Forms Quinoline Cyanine nanoparticles via self-assembly, used for cancer photoacoustic imaging and photothermal therapy; efficiently converts light energy into thermal energy under near-infrared light, resulting in significant tumor suppression rates.

　　Anesthetic: Its sulfate (Quinaldine Sulfate) is used as an anesthetic during fish transport to reduce stress responses.

　　Dyes and Pigments:

　　Food Colorant: Synthesizes Quinoline Yellow WS (E104) for coloring beverages and confectionery; participates in the synthesis of basic dyes (e.g., Pinacyanol).

　　pH Indicator: Serves as a precursor for Quinaldine Red, used in acid-base titrations (color change range pH 1.4-3.2, colorless → red).

　　Fine Chemicals:

　　Catalyst Ligand: Forms complexes with metals (e.g., Palladium, Rhodium) to catalyze coupling reactions (e.g., Heck reaction).

　　Rubber Auxiliary: Synthesizes rubber vulcanization accelerators (e.g., 2-Mercaptoquinoline) to improve rubber heat resistance.

CAS NO: 91-63-4

EC NO: 202-085-1

Molecular Formula: C₁₀H₉N

Molecular Weight: 143.1852

Alias: Quinaldine;

Structure: