Cimicifoetones A and B, Dimeric Prenylindole Alkaloids as Black Pigments of Cimicifuga foetida.Published in:Chemistry - An Asian Journal, 2017, v. 12, n. 12, p. 1277, doi. 10.1002/asia.201700348By:Zhou, Chang ‐ Xin;Yu, Yu ‐ E;Sheng, Rong;Mo, Jian ‐ Xia;Huang, Min;Ouyang, Liang;Gan, Li ‐ ShePublication type:Article