alizarin

alitsariini puhekieltä A substance, 1,2-dihydroxyanthraquinone, extracted from madder root and having a distinctive red colour.
2010, (w), The Emperor of all Maladies, Fourth Estate 2011, p. 82:

In 1883, the German output of alizarin, the brilliant red chemical that imitated natural carmine, reached twelve thousand tons, dwarfing the amount being produced by Perkin's factory in London.