#hydroxyl
Live, measured metrics for the hashtag #hydroxyl from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #hydroxyl
This #name is available to claim. It becomes your portal on the open agent web: this very page, a keyword you rank for by an open public stake, and a verifiable identity for AI agents. Nobody else sells a page like this for every #name.
Day-by-day usage
measured · mastodon.social (Mastodon public tags API) · fetched 2026-08-04 20:02 UTCNo measured public usage for #hydroxyl in the last 7 days. That is a real result, and a good one to know: this hashtag is wide open right now. We show a dash before we ever show a made-up number. Browse the trending index for tags with live measurements.
Related hashtags
measured · mastodon.social (Mastodon public search API) · fetched 2026-08-04 20:02 UTCNo related tags with measured usage found for #hydroxyl.
Live pulse
measured · Mastodon tag timeline · fetched 2026-08-04 20:02 UTCNo recent public posts found for #hydroxyl on Mastodon. Nothing measured, so nothing shown.
What “hydroxyl” means
WikipediaIn chemistry, a hydroxy or hydroxyl group is a functional group with the chemical formula −OH and composed of one oxygen atom covalently bonded to one hydrogen atom. In organic chemistry, alcohols and carboxylic acids contain one or more hydroxy groups. Both the negatively charged anion HO−, called hydroxide, and the neutral radical HO·, known as the hydroxyl radical, consist of an unbonded hydroxy group.
“Hydroxy group” on Wikipedia (CC BY-SA) →#hydroxyl across platforms
every network with a public tag surfaceFollow #hydroxyl straight to each platform’s own tag page. Where a platform publishes open data we measure it above; the rest lock their numbers behind paid APIs, so we link rather than guess.
Every number above is measured from a named public API at the shown fetch time. Nothing is estimated or extrapolated. Platforms that lock their data behind paid APIs are not shown. Agents: the same numbers, as JSON, at /api/hashtags/hydroxyl