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Molecule Builder (OvOHongYu)This feature in other tools
Charges, isotopes and atom labels in Molecule Builder (OvOHongYu)
Selected atom and element replacement buttons.

- What we checked
- Charges, isotopes and arbitrary element labels can be set on atoms.
- Result
- Partly: Fixed element buttons; no charge or isotope editing controls. Partly. Fixed element buttons; no charge or isotope editing controls.
- Version we tested
- 0.1.0, on macOS 27.0.1 arm64
- Manual
- github.com