The molecule is an organic anion that is the conjugate base of 4-dedimethylamino-4-oxoanhydrotetracycline, obtained by deprotonation of the 2-hydroxy group. It is the major microspecies at pH 7.3 (according to Marvin v 6.2.0.). It is a conjugate base of a 4-de(dimethylamino)-4-oxoanhydrotetracycline.
(4aS,12aR)-3-carbamoyl-4a,6,7-trihydroxy-11-methyl-1,4,5-trioxo-12,12a-dihydrotetracen-2-olate