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Chemeditor (Chemrise)This feature in other tools

Charges, isotopes and atom labels in Chemeditor (Chemrise)

Atom labels and charge controls in the structure editor.

Atom labels and charge controls in the structure editor.
What we checked
Charges, isotopes and arbitrary element labels can be set on atoms.
Result
Yes, according to the manual: Ketcher atom properties include labels, charges and isotopes. Yes, according to the manual. Ketcher atom properties include labels, charges and isotopes.
Version we tested
Ketcher 3.18.0 (build 2026-…, on macOS 27.0.1 arm64
Manual
github.com

Open the full pageManual