Redirect to:
- From other disambiguation: This is a redirect from a title with an alternative disambiguation qualifier of the target name.
- The disambiguation of these page names is not incorrect, incomplete nor unnecessary. For those redirects use {{R from incorrect disambiguation}}, {{R from incomplete disambiguation}} or {{R from unnecessary disambiguation}} instead.
- From an avoided double redirect: This is a redirect from an alternative title or related topic of Dioxygen, another redirect to the same title. Because double redirects are disallowed, both pages currently point to Allotropes of oxygen#Dioxygen.
- If Dioxygen is retargeted or is expanded into a separate article, template, or other project page, this redirect will be recategorized to be updated.
- To a section: This is a redirect from a topic that does not have its own page to a section of a page on the subject. For redirects to embedded anchors on a page, use {{R to anchor}} instead.