21508-40-7 DIBENZO(b,e)THIEPIN-delta(sup 11(6H),gamma)-PROPYLAMINE, N,N,2-TRIMETHYL-, 5,5-D Dibenzo(b,e)thiepin-delta(sup 11(6H),gamma)-propylamine, N,N,2-trimethyl-, 5,5-dioxide, maleate (1:1), (E)-