doethyl(6-chloro-1,2,3,4-tetrahydro-2-carbazolyl)methyl malonate, Propanedioicacid,(6-chloro-2,3,4,9-tetrahydro-1H-carbazol-2-yl)methyl-,diethyl ester(9CI), Diethyl (6-chloro-2,3,4,9-tetrahydro-1H-carbazol-2-yl)methylmalonate, (6-chloro-1,2,3,4-tetrahydro-2-carbazolyl)methylmalonic acid diethyl ester, Propanedioic acid,2-(6-chloro-2,3,4,9-tetrahydro-1H-carbazol-2-yl)-2-methyl-,1,3-diethyl ester,