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C20H8O6

資料來源 : Webster's Revised Unabridged Dictionary (1913)

Cerulein \Ce*ru"le*in\, n. [L. caeruleus sky-blue.] (Chem.)
   A fast dyestuff, {C20H8O6}, made by heating gallein with
   strong sulphuric acid. It dyes mordanted fabrics green.
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