Piperidine,1-methyl-4-thioxanthen-9-ylidene- (7CI,8CI);9-(1-Methyl-4-piperidinylidene)thioxanthene; 9-(N-Methyl-4'-piperidylene)thioxanthene;9-(N-Methyl-4'-piperidylidene)-thioxanthene; BP 400; BP 400S; CGA 123427;Calmixen;Mepithiathene;Pimethixene;Pimetixene;Pimethixenum