8Hydroxyquinaldine

8Hydroxyquinaldine, also known as 8-hydroxy-2-methylquinoline, is an organic compound with the chemical formula C10H9NO. It is a derivative of quinoline, a heterocyclic aromatic organic compound. The structure features a hydroxyl group (-OH) attached at the 8th position and a methyl group (-CH3) at the 2nd position of the quinoline ring.

This compound typically appears as a crystalline solid, often yellow or pale yellow in color. It is sparingly soluble in water but more soluble in organic solvents such as ethanol and ether. 8Hydroxyquinaldine exhibits amphoteric properties due to the presence of both the basic nitrogen atom in the quinoline ring and the acidic hydroxyl group.

Historically, 8hydroxyquinaldine has found applications primarily as an analytical reagent. It forms colored complexes with various metal ions, making it useful in qualitative and quantitative analysis for the detection and determination of these metals. For instance, it can be used in spectrophotometric methods. It has also been explored for its potential as a chelating agent.

While its analytical uses are notable, 8hydroxyquinaldine is not a widely used industrial chemical. Research into its properties and potential applications continues, but its primary recognition stems from its role in chemical analysis.