“…The final extractive was about 52.1362.46% for YPFS, 33.9962.25% for AR extract, 67.8260.38% for AMR extract, and 37.2260.88% for SR extract (n = 3). In order to standardize YPFS chemically, a typical HPLC (2), scopoletin (13), ononin (4), calycosin (1), astragaloside III (6), astragaloside IV (7), astragaloside II (5), formononetin (3), aesculetin (IS1), Rg1 (IS2) and chrysin (IS3) was made by a MS detector in the negative mode. Representative chromatograms are shown, n = 3; (B): The identification of prim-O-glucosylcimifugin (11), 5-O-methylvisammioside (12), psoralen (14), isopsoralen (15), atractylenolide III (10), atractylenolide II (9), atractylenolide I (8), esculin (IS4), crytotanshinone (IS5) was made by a MS detector in the positive mode.…”