Representative MRM chromatograms of roots of F. cauliflora (A), stems of F. cauliflora (B), leaves of F. cauliflora (C), roots of M. pulchra var. laxior (D), and the five analytes (E-I) by UPLC-QqQ-MS. Peak identification: 1. Pachycarin A, 2. 3′,4′-dimethoxy(2′′,3′′:7,8) furanoflavone, 3. Karanjin, 4. Karanjachromene, and 5. Isoderricin A.