C20H22O10, a natural element extracted from certain lichens, a derivative of orsellinic acid.
alternate type of erythrite.
A colorless crystalline material, C20H22O10, extracted from certain lichens, due to the fact different species of Rocella. It's a derivative of orsellinic acid. So named considering certain red substances produced from it. Called also erythric acid.
See Erythrite, 2.
An organic concept (C20H22O10) obtained from Roccella tinctoria, Lecanora tartarea, and other lichens, which furnish the blue dyestuff called litmus.
Same as erythrite, 1.
A coal-tar colour of the xanthene type, served by the methylation of eosin. It dyes silk a bluish red with a red fluorescence. Also known as primrose.