Experiments are undergone to extract colorants from naturally colored cotton fiber.Results show that natural colorants are water or alcohol soluble substances with 2-benzyl benzofuran structure.

• 通过提取和测试天然彩色棉的色素,结果表明,天然色素系水溶性或醇溶性多酚类物质,具2苯基苯并吡喃的结构;