Catalyst

Redirect to:

This page is a redirect. The following categories are used to track and monitor this redirect:

From a cross-project redirect: This is a redirect from a title linked to an item on Wikidata. The Wikidata item linked to this page is catalyst (Q12385831).
- Use this template only on hard redirects – for soft redirects use {{Soft redirect with Wikidata item}}.

From a merge: This is a redirect from a page that was merged into another page. This redirect was kept in order to preserve the edit history of this page after its content was merged into the content of the target page. Please do not remove the tag that generates this text (unless the need to recreate content on this page has been demonstrated) or delete this page.
- For redirects with substantive page histories that did not result from page merges use {{R with history}} instead.

Mentioned in a hatnote: This is a redirect from a title that is mentioned in a hatnote at the redirect target. The mention is usually atop the target article. It may, however, be directly under a section header, or in another article's hatnote (whenever the hatnote is under a section, {{R to section}} should also be used).
- The titles of redirects mentioned in hatnotes may refer to a subject other than that of the target page. It is possible that this redirect may need to be retargeted, or become an article under its own title (see {{R with possibilities}}). If the title is a good candidate for a Wiktionary link, it may also be added.

From a printworthy page title: This is a redirect from a title that would be helpful in a printed or CD/DVD version of Wikipedia. See Wikipedia:Printability and Version 1.0 Editorial Team for more information.

When appropriate, protection levels are automatically sensed, described and categorized.