1-ethoxycarbonylbicyclo[2.2.2]octane-4-carboxylic acid , with CAS number of 834-50-4, can be called 4-(Ethoxycarbonyl)bicyclo[2.2.2]octane-1-carboxylic acid ; bicyclo[2.2.2]octane-1,4-dicarboxylic acid, monoethyl ester .