purpurin
英[ˈpɜːpjʊrɪn]
美[pərpjəˌrɪn; ˈperpjuːrən; ˈperpjʊrɪn]
双语例句
- 1. The key points for extraction of natural edible purpurin and blue pigment are described.
- 本文详述了天然食用紫色素和蓝色素的提取技术和操作要点。
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- 2. In basic condition E ring was converted into the cyclohexanedicarboxylic anhydride to form purpurin 18 derivatives by the air oxidation.
- 在碱性条件下，通过空气氧化将E环转变为环己二羧酸酐形成红紫素18甲酯衍生物；
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- 3. A series of novel purpurin-18 imide derivatives with long absorption wavelength were synthesized through Wittig reaction of methyl pheophorbide-a.
- 合成的一系列红紫素-18酰亚胺衍生物具有长波长的紫外吸收。
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- 4. A series of novel purpurin-18 imide derivatives with long absorption wavelength were synthesized through Wittig reaction of methyl pheophorbide-a.
- 合成的一系列红紫素-18酰亚胺衍生物具有长波长的紫外吸收。
youdao
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