5-methylquinolin-8-ol Chemical Properties

Melting point:

121-122 °C(Solv: water (7732-18-5); methanol (67-56-1))

Boiling point:

324.7±22.0 °C(Predicted)

Density 

1.210±0.06 g/cm3(Predicted)

storage temp. 

Sealed in dry,Room Temperature

form 

Solid

pka

5.33±0.10(Predicted)

Safety Information

HS Code 

2933499090

5-methylquinolin-8-ol Usage And Synthesis

Chemical Properties

Needle crystals. Melting point 122-124 ℃. Sublimation at 100°C. Soluble in chloroform, insoluble in water.

Uses

5-methylquinolin-8-ol can be used as a chelating extractant.

Definition

ChEBI: Tiliquinol is a hydroxyquinoline.

Synthesis

8-Hydroxy-5-methylquinoline can be prepared by the following steps: mixing p-aminocresol hydrochloride, glycerol, sulfuric acid and picric acid, heating for 3-4h. Dilute with water to make it slightly alkaline. Then adjust to strong acidity with acetic acid. Finally, steam distillation, adding ammonium hydroxide to precipitate the crude product from the acetic acid distillate, and recrystallizing and purifying with ethanol to obtain the finished product.

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