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Studies on the chemical constituents of the root of Asarummaximum
Ten compounds weer isolated from the root of Asarum maximum Hemsl. Their structures were identified as l-sesamin (I), 2, 4, 5-trimethoxy-benzaldehyde (II), 1-[(2,4,5-trimethoxy)-phenyl]-1-propanone
[Chemical constituents from leaves of Boehmeria nivea].
Compounds 1-3, 5-8 were isolated from the genus Boehmeria for the first time and their structures were elucidated as kiwiionoside, eugenyl beta-rutinoside, uracil, cholesterol, beta-sitosterol glucoside and 3-hydroxy-4-methoxy-benzoic acid.
[Research on relationship between commercial specifications of Scutellariae Radix and chemical composition and drug quality].
Four commercial specifications of Scutellariae Radix can be classified as Kuqin and Ziqin respectively according to morphological characteristics and the proportions of decayed central xylem part in the root.
[Study on HPLC-fingerprint-based identification of dao-di herb and non dao-di herb of scutellariae radix].
Dao-di herb and non Dao- di herb of Huangqin could be distinguished using the developed HPLC fingerprints, and may provide evidence for the quality control and pharmcodynamical research of Dao.