Through a series of 1H NMR,13C NMR,COSY,HMQC,HMBC and ESI MS experiments,its structure was confirmed to be 5-methoxyl-11,12,18,19-tetra-hydroxyl-anthraquinone(1).

• 的发酵液中分离纯化了1个醌类化合物,通过各种波谱实验(1D-NMR,2D-NMR以及ESIMS)确定其结构为:5-甲氧基-11,12,18,19-四羟基蒽醌(1)。