Doxycycline

Chemical Name: 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide ; Dentistar ; Doximal ; Doxymycin ; Tetradox ; α-6-Deoxy-5-hydroxytetracycline ; α-Doxycycline

Smile: O[C@@](C(O)=C(C(C1=C2C=CC=C1O)=O)[C@]([C@H]2C)([H])[C@@H]3O)(C(C(C(N)=O)=C4O)=O)[C@]3([H])[C@@H]4N(C)C