Dark yellow to brown crystalline powder
6-Aminoquinoline was used as an internal standard in determining serum nicotine and cotinine simultaneously by using high-performance liquid chromatography (HPLC)-fluorometric detection with a postcolumn ultraviolet-photoirradiation system. It was also used as a fluorescent derivatizing agent for the detection of biochemicals and in the synthesis of tertiary N-methylated enaminonesa.
6-Aminoquinoline is used in the preparation of diaminopyrimidine derivatives as 5-HT4 receptor agonists.
It is purified by column chromatography on a SiO2 column using CHCl3/MeOH (4:1) as eluent. It crystallises from *C6H6 or *C6H6/pet ether and is an irritant. The styphnate has m 239-240o (from EtOH) and m 242-243o (from aqueous Me2CO). [Barrett et al. J Chem Soc 50, 57 1953, Beilstein 22 III/IV 4681, 22/10 V 303.]