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单词 benzophenone
释义 ben·zo·phe·none
\ˌ ̷ ̷(ˌ) ̷ ̷fəˈnōn, -ˈfēˌnōn\ noun
(-s)
Etymology: International Scientific Vocabulary benz- + -phenone
: a colorless crystalline ketone C6H5COC6H5 with a roselike odor made by the pyrolysis of calcium benzoate or from benzene and carbon tetrachloride by the Friedel-Crafts reaction and used chiefly in perfumery — called also diphenyl ketone
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