Spectrophotometric studies on some azo compounds derived from tetracycline and oxytetracydine

ABSTRACT

The absorption spectra of some azo compounds derived from aniline, p- nitroaniline, sulfanilic acid and sulphanilamide coupled with tetracycline [TC] and oxytetracycline [OTC] in organic solvents and buffer solutions of different pH values have been investigated. The results have been utilized for the determination of pKa. The spectra of the compounds were discussed in relation to molecular structure