CAS 68304-21-2: 8-hydroxy-2-oxo-1,2-dihydroquinoline-5-carbaldehyde

Applications 5-Formyl-8-hydroxycarbostyril is a metabolite of procaterol hydrochloride (Meptin), a β2-adrenergic agonist used in the treatment of asthma. References Kobayashi, H. et al.: Int. J. Clin. Pharm. Ther., 48, 744 (2010);

8-Hydroxy-2-oxo-1,2-dihydroquinoline-5-carbaldehyde is a cyclic compound that has been identified as a metabolite of quinolones such as ciprofloxacin. It is also found in human urine and faeces. The structure of 8-hydroxy-2-oxo-1,2-dihydroquinoline 5'-carbaldehyde can be determined by spectrometric methods. This compound is the product of metabolism of ciprofloxacin and other quinolones. Ciprofloxacin is a fluoroquinolone antibiotic that inhibits bacterial DNA gyrase, leading to inhibition of RNA synthesis and protein synthesis. Quinolones are also metabolized to 8-hydroxy 2 -oxo 1,2 -dihydroquinoline 5'-carbaldehyde by glucuronic acid conjugation and hydrolysis. The