单词 | fluorene |
释义 | fluorene [`flu̇´rēn] ORGANIC CHEMISTRY C13H10 A hydrocarbon chemical present in the middle oil fraction of coal tar; insoluble in water, soluble in ether and acetone, melting point 116-117°C; used as the basis for a group of dyes. Also known as 2,3-benzindene; diphenylenemethane. |
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