Yes, but the ordering is relative to some ranking. I think you're accessing "local parity" here, see slide 8 http://baoilleach.blogspot.co.uk/2015/08/the-whole-of-cheminformatics-best.html .
Try accessing the "_CIPCode" prop on the atoms. Note there are still problems. J
------------------------------------------------------------------------------
_______________________________________________ Rdkit-discuss mailing list Rdkit-discuss@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/rdkit-discuss