User 79ced63691
		23-01-2008 10:05:00
	 
	
	
	How can I define a  inversion/retention flag?	
	
 
	
		ChemAxon e08c317633
		23-01-2008 12:31:34
	 
	
	
	Hi,
Right click on an 
atom in MarvinSketch and select "Stereo->Reaction->Inversion" (or "Stereo->Reaction->Retention").
Note: inversion/retention flag and chiral flag are two different things. See also: 
basic stereo specification in Marvin help.
Regards,
Zsolt