The molecule is a member of the class of tetracyclines that is anhydrotetracycline in which the two methyl groups attached to the nitrogen have both been replaced by hydrogen. It is a tertiary alpha-hydroxy ketone and a member of tetracyclines. It is a tautomer of a 4-amino-4-de(dimethylamino)anhydrotetracycline zwitterion.
(4S,4aS,12aR)-4-amino-1,10,11,12a-tetrahydroxy-6-methyl-3,12-dioxo-4a,5-dihydro-4H-tetracene-2-carboxamide