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Find chemicals by structure or substructure:

Tips: for NO2, draw a double bond between each O and N
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This Java Applet was realized by Peter Ertl from Novartis Crop Protection AG

**Keyboard shortcuts**
bonds -,=,#	rings 3..8, Ph is 1, furyl 0	atoms C,N,O,P,S,F,L,B,I,H	groups t - tert.butyl, ft - CF3, y - nitro, a - COOH, z - SO2NH2
d - delete	Esc - return to the standard state (C, single bond)
molecule may by moved by "dragging" free space and rotated by pressing concurrently also the shift key