From the flowers of Bombax ceiba L. (Family: Bombacaceae) twenty-four compounds were isolated and identified, including ten flavonoids, quercetin (1), quercetin-3-O--D-glucopyranoside (2), quercetin-3-O--D-glucuronopyranoside (3), rutin (4), sexangularetin-3-O-sophoroside (5), vitexin (6), isovitexin (7), vicenin 2 (8), kaempferol-3-O-rutinoside (18), and kaempferol-3-O--D-glucuronopyranoside (23); three xanthones, isomangiferin (9), mangiferin (10), and 7-O-methyl mangiferin (11); four coumarins, esculetin (12), scopoletin (13), fraxetin (14), and scopolin (21); and seven other compounds, blumenol C glucopyranoside (15), benzyl--D-glucopyranoside (16), phenylethyl rutinoside (17), protocatechulic acid (19), chlorogenic acid (20), methyl chlorogenate (22) and vanillic acid (24). Among these, 13 compounds (3