1 QUM Quinacrine mustard 1.000 2 QUN Quinacrine 0.933 3 0TX (4s)-N~4~-(7-chloroquinolin-4-yl)-N~1~,N~1~-diethylpentane-1,4-diamine 0.733 4 CLQ N4-(7-chloro-quinolin-4-yl)-n1,n1-diethyl-pentane-1,4-diamine 0.733