Undo last operation Clean structure Simplify structure (Ertl algorithm) Del Qry Move molecule, atom, or bond Rotate around molecule center, atom or bond Mirror molecule on x-axis, or flip bond Mirror molecule on y-axis, or flip bond Structure Drawing Area
Enter single-bond drawing mode alt= Enter double-bond drawing mode Enter triple-bond drawing mode Enter up-wedge drawing mode Enter down-wedge drawing mode Enter any-bond drawing mode Enter stereo-either-bond drawing mode Enter wiggly-bond drawing mode S/A D/A S/D
Draw or link 3-membered ring Draw or link 4-membered ring Draw or link 5-membered ring Draw or link 6-membered ring Draw or link 7-membered ring Draw or link 8-membered ring Draw or link 3-membered ring Open templates window - select structure and paste it into drawing area
Draw ethyl fragment Draw n-proyl fragment Draw i-proyl fragment Draw n-butyl fragment Draw i-butyl fragment Draw s-butyl fragment Draw t-butyl fragment CHO CO2H NO2 SO3H
H ?           He
Li Be   B C N O F Ne
Na Mg   Al Si P S Cl Ar
K Ca Sc Ga Ge As Se Br Kr
Rb Sr Y In Sn Sb Te I Xe
Cs Ba Lu Tl Pb Bi Po At Rn