• The method for preparing the 6-substituted-4-chromanone-2-methanoic acid has the characteristics of simple and safe operation and low production cost.

    采用本发明制备方法生产6-取代-4-色满酮-2-甲酸具有操作简单安全、生产成本特点

    youdao

  • The method for preparing the 6-substituted-4-chromanone-2-methanoic acid has the characteristics of simple and safe operation and low production cost.

    采用本发明制备方法生产6-取代-4-色满酮-2-甲酸具有操作简单安全、生产成本特点

    youdao

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