ABSTRACT: The Sn(IV) atom in the title compound, [Sn(C(4)H(9))(2)(C(19)H(13)BrN(2)O(3))], shows a distorted cis-C(2)NO(2)Sn trigonal-bipyramidal coordination. Both butyl chains and the naphth-yl-oxy portion are disordered over two sets of sites of equal occupancy.