• 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蓝色提取技术和操作要点

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  • In basic condition E ring was converted into the cyclohexanedicarboxylic anhydride to form purpurin 18 derivatives by the air oxidation.

    碱性条件下通过空气氧化E转变为环己二羧酸酐形成18甲酯衍生物

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  • A series of novel purpurin-18 imide derivatives with long absorption wavelength were synthesized through Wittig reaction of methyl pheophorbide-a.

    合成一系列红素-18酰亚胺衍生物具有长波长的紫外吸收

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  • A series of novel purpurin-18 imide derivatives with long absorption wavelength were synthesized through Wittig reaction of methyl pheophorbide-a.

    合成一系列红素-18酰亚胺衍生物具有长波长的紫外吸收

    youdao

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