6H-Imidazo[4,5,1-de]acridin-6-one, 5-[3-[4-[3-[5-nitro-1,3-dioxo- 2H-benz[de]isoquinolin-2-yl]propyl]- 1-piperazinyl]propyl]amino]-, trimethanesulfonate NSC695942