1-(10,11-Dihydrodibenzo(b,f)selenepin-10-yl)-4-methylpiperazine maleate 10-(4-Methylpiperazino)-10,11-dihydrodibenzo(b,f)selenepin maleate 24495-42-9 Piperazine, 1-(10,11-dihydrodibenzo(b,f)selenepin-10-yl)-4-methyl-, maleate (1:1)