I. dye purple 19 as a colorant, and the yellow ink combination is made of c.

颜料紫19构成的组中选择的至少一种颜料作为着色剂而成，所述黄色墨液组合物含有c。

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Any of several vines of the genus Cynanchum, especially C. nigrum, native to Europe, having clusters of small brownish-purple flowers.

白屈菜，黑白前：一种白前属的藤本植物，尤指产于欧洲的黑白前，具有褐紫色小花簇。

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