Kalanchoe pinnata (Crassulaceae), Bombax ceiba (Bombaceae), and Morus alba (Moraceae) are important drugs in Indian and Chinese Systems of Medicine. Leaves of K. pinnata are reported to show anti-inflammatory, antifungal, and antibacterial activity and are reported to contain quercetin, kaempferol, α-amyrin, β-sitosterol, ferulic, and caffeic acid. Leaves of B. ceiba are reported for the treatment of diarrhea, dysentery, gonorrhea, and bladder ulceration and are reported to contain shamimin, lupeol, β-sitosterol, and α-amyrin. Leaves of M. alba are reported to show anti-inflammatory, emollient, hypolipidemic, and diuretic activity and are reported to contain quercetin, rutin, moracetin, and artocarpin. In the present work, a method for simultaneous quantification of three marker compounds, viz., α-amyrin, lupeol, and β-sitosterol from the leaves of K. pinnata, B. ceiba, and M. alba was developed and validated as per International Conference on Harmonization (ICH) guidelines. This is the first report of simultaneous quantification of these three compounds. α-Amyrin, lupeol, and β-sitosterol resolved at RF 0.71, 0.28, and 0.16, respectively, on thin-layer chromatography (TLC) when developed in the solvent system of toluene-ethyl acetate (9.5:0.5). The linearity range for α-amyrin, lupeol, and β-sitosterol was found to be 160–560, 150–900, and 80–480 ng spot−1, respectively, with correlation coefficients (r values) of 0.999, 0.997, and 0.995, respectively. The amount of α-amyrin, lupeol, and β-sitosterol were found to be in range of 0.013–0.047, 0.046–0.318, and 0.028–0.123 % w/w, respectively. The developed methods were found to be accurate, precise, and reproducible and can be used for routine quality control of herbal material and formulations containing K. pinnata, B. ceiba, and M. alba.
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