The molecule is a member of the class of cortistatins that is cortistatin A in which the hydrogens at position 16 have been replaced by an oxo group. It is a member of cortistatins, a diol, a cyclic ketone and a secondary alcohol. It derives from a cortistatin B.
(1S,2R,5S,6S,12R,13R,14S,16R)-14-(dimethylamino)-12,13-dihydroxy-5-isoquinolin-7-yl-6-methyl-19-oxapentacyclo[14.2.1.01,9.02,6.011,16]nonadeca-8,10-dien-4-one