User guide

You can also clean up a reaction or a biopolymer. For more information, see "Clean Up Reaction" on page 107 and
"Clean Up Biopolymer" on page 65
Check structure
You can check the chemistry of a selected structure, part of a structure, or caption (in Formula style) with the Check
Structure command. The structure is checked using normal valences and elements, and defined nicknames.
To check the valences of all selected atoms in a structure:
1. Select a structure, part of a structure, or caption.
2. Go to Structure>Check Structure.
If a structure is incorrect, a message window appears.
3. To continue checking the structure, click Ignore. To ignore all subsequent errors, click Ignore All. To stop check-
ing for errors, click Stop.
Checking copied structures
To have ChemBioDraw perform a check structure analysis each time you copy a structure from the clipboard:
1. Go to File>Preferences.
2. On the General tab, click the Check Structure When Copying to Clipboard or Exporting check box.
This change affects all documents.
Chemical warnings
ChemBioDraw 13.0 checks chemical syntax as you draw. If it finds an error in your structure, a wavy red box appears
around the object. The box is displayed only on the screen and does not print.
Disabling chemical warnings
Warnings are displayed by default. To disable chemical warnings, go to View>Show Chemical Warnings.
To disable error checking on a specific object, right-click the object and deselect Display Warnings on the context
menu.
ChemBioDraw 13.0
Chapter 3: Basic drawings 48 of 401