from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A tricyclic ketone derivative of thioxanthene having a carbonyl group opposite the sulfur atom

from The Century Dictionary and Cyclopedia

  • n. A yellow compound, , prepared by the action of sulphuric acid on phenyl-thiosalicylic acid. It crystallizes in needles, melts at 209° C., and boils at 371–373° C. under 715 millimeters pressure.


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