from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. 1,2,7-trihydroxyanthraquinone
from The Century Dictionary and Cyclopedia
- n. A coal-tar color (C14H5O2(OH)3) used in dyeing, closely allied to alizarin, formed by heating beta-anthraquinon disulphonic acid with caustic soda and potassium chlorate.
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