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单词 purpurogallin
释义

purpurogallin

/ˌpəːpjʊrə(ʊ)ˈɡalɪn/
Chemistry
noun
An orange-red crystalline dye, originally prepared by mild oxidation of pyrogallol and later found to occur in some oak galls.
  • Purpurogallin is a tetrahydric phenol with fused tropolone and trihydroxybenzene rings; C11H8O5..

Origin

Late 19th century; earliest use found in Journal of the Chemical Society. From French purpurogalline from purpur- (in purpurine) + -ogall- + -ine. The dye was so named after the unrelated purpurin by analogy with the preparation of that substance by oxidation of alizarin.

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更新时间:2025/2/23 1:07:34