a comparison of the o2- yields from the tetracyclines examined showed the trend chlortetracycline ( ctc ) greater than oxytetracycline ( oxy ) greater than demeclocycline ( dem ) much greater than ( doxycycline ( doxy ) = tetracycline ( tc ) = minocycline ( mino ) = 0 ) .
C0039651
tetracyclines
C0039644
tetracycline