1 6LB 4-ethylmorpholine 1.000 2 00E Morpholin-4-ylacetic acid 0.800 3 6LR Morpholine 0.750 4 IT2 Morpholine-4-carbodithioic acid 0.700 5 MJB 2-piperazin-1-ylethanol 0.700 6 ZGX 1-(3,4-dihydropyrazin-1(2h)-yl)ethan-1-one 0.700