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.
OriginLate 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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