In the title molecule {systematic name: N-[3-(diquino [3, 2-b; 2′, 3′-e][1, 4] thiazin-6-yl) propyl]-4-methylbenzenesulfonamide}, C28H24N4O2S2, the pentacyclic system is relatively planar [maximum deviation from the mean plane= 0.242 (1) Å]. The dihedral angle between