murexide

[ myoo-rek-sahyd, -sid ]

/ myʊˈrɛk saɪd, -sɪd /

a reddish-purple, crystalline, sparingly water-soluble solid, C8H8N6O6, having a green luster, formerly used as a dye.

Also called ammonium purpurate.

Origin of murexide

First recorded in 1830–40; murex + -ide

murdrum, mure, murein, mures, murex, murexide, murexide test, mureş, murfreesboro, murgeon, murghob

When an alkaline solution of murexide is precipitated by an acid, a light shining powder results, called purpuric acid.

Field's Chromatography |George Field
Murexide is turned, by potassa, gray in its light shades and violet in its dark ones.

Scientific American Supplement, No. 363, December 16, 1882 |Various
The third group includes safflower, magenta, and murexide (light shades).

Scientific American Supplement, No. 363, December 16, 1882 |Various
Dissolved in water, the murexide derived from uric acid is a magnificent crimson.

The Glow-Worm and Other Beetles |Jean Henri Fabre