1-BENZOTHIEPIN-5-AMINE, 2,3,4,5-TETRAHYDRO-N-METHYL-N-2-PROPYNYL-, MALEATE (1:1) 2,3,4,5-Tetrahydro-N-methyl-N-2-propynyl-1-benzothiepin-5-amine maleate 21699-89-8 5-(N-Propargylmethylamino)-2,3,4,5-tetrahydro-1-benzothiepin hydrogen maleate