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      首頁 > X > xanthene怎么讀,xanthene什么意思,xanthene短語和例句

      xanthene怎么讀,xanthene什么意思,xanthene短語和例句

      收錄時間:2022-08-31 09:37:07

      xanthene怎么讀,xanthene什么意思

      英 [?z?nθi?n]美 [?z?nθi?n]
      • n. 氧雜蒽(黃色小晶體,供有機合成物用)

      xanthene 常用句子

      1.In the present paper, a series of xanthene-2-carboxylic acids and xanthone-2-carboxylic acids with electron withdrawing groups on the 7-position had been synthesized.

      本文合成了一系列7位拉電子基團取代的氧雜蒽-2-羧酸及氧雜蒽酮-2-羧酸化合物。

      2.In the present paper, a series of xanthene-2-carboxylic acids and xanthone-2-carboxylic acids with electron withdrawing groups on the 7-position had been synthesized.

      本文合成了一系列7位拉電子基團取代的氧雜蒽-2-羧酸及氧雜蒽酮-2-羧酸化合物。

      3.Methyl 9-hydroxyl-9-xanthene carboxyate which is an important intermediate of xanthene anticholiergic drugs was easily synthesized from methyl 9-xanthene carboxyate.

      羥基-9-呫噸羧酸甲酯是合成呫噸類抗膽堿能藥物的一種重要的中間體。

      4.The cationic dye may be chosen from azo dyes, azomethine dyes, methine dyes and xanthene dyes.

      優選地,陽離子染料選自偶氮染料、偶氮甲堿染料、次甲基染料和?噸染料。

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