从新疆紫草[Arnebia euchroma(Royle)Johnst.]的细胞培养物分离到5个萘醌类化合物,据其理化性质和光谱数据,分别鉴定为去氧紫草素(deoxyshikonin,Ⅰ)、β,β-二甲基丙烯酰紫草素(β,β-dimethylacrylshikonin,Ⅱ)、乙酰紫草素(acetylshikonin,Ⅲ)、2,3-二甲基戊烯酰紫草素(teracrylshikonin,Ⅳ)和β-羟基异戊酰紫草素(β-hydroxyisovaleryl-shikonin,Ⅴ)。细胞培养物不含从新疆紫草根中分得的紫草素(shikonin);各成分在细胞培养物中的含量与在新疆紫草根中的含量有很大差异。 Five naphthoquinone compounds were isolated from the cell culture of Arnebia euchroma (Royle) Johnst., and identified as deoxyshikonin (I) and β according to their physicochemical properties and spectral data. Β-dimethylacrylshikonin (II), acetylshikonin (III), 2,3-dimethylpropenoylkonin (IV) and β -Hydroxyisovaleryl-shikonin (V). The cell culture contains no shikonin from the roots of Xinjiang violaceum; the content of each component in the cell culture is very different from that in the root of Xinjiang comfrey.