Molecule orientation preserved?

Is it possible to preserve the structure orientation of the molecule "as drawn", as opposed to having the structure automatically rotated by Marvin?

Is there any other method of normalizing structure orientation to allign similar structures?

 

thanks,

a

Which format do you use?

Save the structure in MRV, in MDL molfile or in any other format that stores coordinates.

Probably, you save your structures in SMILES, in InChi or in IUPAC name that does not contains coordinate information.

In this case. Marvin calculate 2D coordinates itself.