1. an orange or red crystalline compound C14H8O5 obtained from madder root along with alizarin or by oxidation of alizarin and used in dyeing
2. any of various colored compounds obtained from chlorophyll or related compounds by the action of cold alcoholic alkali and oxygen
purpurin 片语
片语
purpurin- imide derivatives红紫素
-purpurin红紫素;[有化] 羟基茜草素
purpurin methyl ester红紫素
IN PURPURIN新乐路
purpurin 18 methyl ester红紫素
purpurin 18紫红素
Bile-purpurin胆汁红紫素
purpurin red蒽紫红素
indigo purpurin靛紫
purpurin 例句
英汉例句
the alkylation and acylation for hydroxyl group linked with nitrogen were accomplished to give n alkoxy and n acyloxy purpurin 18 imides, respectively.
对其羟基进行烷基化和酰基化,合成出n 取代红紫素18酰亚胺衍生物。
in basic condition e ring was converted into the cyclohexanedicarboxylic anhydride to form purpurin 18 derivatives by the air oxidation.