Murexide

Rarity: Uncommon

A topic a little better known than average, read and translated beyond its own country.

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At a glance

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Notion

Domain

Science and technology

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What Wikipedia says

Murexide (NH4C8H4N5O6, or C8H5N5O6·NH3), also called ammonium purpurate or MX, is the ammonium salt of purpuric acid. It is a purple solid that is soluble in water. The compound was once used as an indicator reagent.

Excerpt from the Wikipedia article “Murexide”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Shaddack, Public domain, via Wikimedia Commons.