Hi,

Jmol does some pretty complex tasks, I think :)

However, there is an implementation of the CIP rules in the CDK
(chemistry development kit), which can also read mol files. For
example:

http://github.com/cdk/cdk/blob/master/src/test/org/openscience/cdk/geometry/cip/CIPSMILESTest.java

gilleain

On 7/28/11, Richard Ball <[email protected]> wrote:
> I know that assigning R and S to 3D molecules is too complex a task for Jmol
> but I wondered what programs are available for doing this. The .mol file
> format has the ability to describe both 3D coordinates as well as bonding so
> is there a program that can read a structure in that format and assign the
> stereocenters?
>
> Platon will do some but it isn't a general solution since the bonding isn't
> explicit and the assignment rules are not fully implemented (IOW it makes
> mistakes).
>
> I have the luxury of having access to non-commercial proprietary software to
> do this but is there something more generally available, either free or not
> too costly, I could recommend to others?
>
> Rich
>
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