Chemical Name: (4S,4aR,12aR)-4-(dimethylamino)-3,7,10,11-tetrahydroxy-1,12-dioxo-1,4,4a,5,12,12a-hexahydrotetracene-2-carboxamide
Synonym: Alcaftadine 3-Carboxylic Acid
Smile: OC1=C2C(C(O)=C(C([C@@](C(C(C(N)=O)=C(O)[C@H]3N(C)C)=O)([H])[C@@]3([H])C4)=O)C4=C2)=C(O)C=C1