The molecule is a maleate salt obtained by combining equimolar amounts of (R,R)-asenapine and maleic acid. It contains a (R,R)-asenapine(1+). It is an enantiomer of a (S,S)-asenapine maleate.
(Z)-but-2-enedioic acid;(2R,6R)-9-chloro-4-methyl-13-oxa-4-azatetracyclo[12.4.0.02,6.07,12]octadeca-1(18),7(12),8,10,14,16-hexaene