User guide

Stereochemistry
ChemBioDraw 13.0 calculates the absolute stereochemistry according to the Cahn-Ingold-Prelog (CIP) priority rules.
For more information, see "Cahn-Ingold-Prelog" on page 296.
Only tetrahedral and double-bond stereochemistry are supported, and only non-racemic stereochemistry is inter-
preted. Stereochemical indicators for aromatic bonds are not displayed.
ChemBioDraw uses this notation:
(R), (S)
Standard tetrahedral stereochemistry.
(r), (s)
Tetrahedral stereochemistry determined by other stereochemical centers. For example: cis-decalin and myo-inositol.
(E), (Z)
Standard double-bond stereochemistry.
Stereochemistry indicators
1. Select the structure.
2. Right-click and select Object Settings.
3. In the Drawing tab, under Atom Indicators and Bond Indicators, select Show Stereochemistry.
The stereo-centers are marked as shown in this example.
ChemBioDraw 13.0
Chapter 9: Chemistry features 129 of 401