A new phenanthraquinone, 2,6-dihydroxy-8-methoxy-1,4-phenanthraquinone (1), was isolated from the aerial parts of Cremastra appendiculata. The structure of the new compound was determined on the basis of NMR (1D and 2D) and mass spectroscopic analysis.

中文翻译：

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一种新的来自蛔虫气部的菲醌

从 Cremastra appendiculata 的地上部分分离出一种新的菲醌，2,6-二羟基-8-甲氧基-1,4-菲醌 (1)。新化合物的结构是在核磁共振（一维和二维）和质谱分析的基础上确定的。