R-group

Converts the atom to an R-group with the given number (only numerical characters are allowed). Maximum index is 32767. This atom can be used to describe an unknown or unspecified molecule part or to draw an R-group query or Markush structure.

Alias

The given value is shown as atom label but the atom itself does not change.

Pseudo

The given value is shown as atom label and the type of the atom is changed to 'Any'.

SMARTS

Converts the given value to a complex SMARTS query molecule or atom. If the cursor is kept over the canvas during typing, the conversion can be seen on-the-fly.

Value

Adds the given value to an atom as a custom property ("Atom value").