1. Four aromatic proton signals at ? H 7.85, 7.66, 6.98 and 6.28 corresponding to H-2�, H-6�, H-5� and H-6 of gossypetin occurred (Table 1). Xylose anomeric and acetyl methyl protons occurred at ? H 4.93 (d, J = 7.8 Hz) and 2.04 (s), respectively. The attachment of xylose to 8-position of gossypetin was shown by HMBC correlation between anomeric proton signal and C-8 carbon signal at ? C 123.2. On the other hand, acetyl COOH carbon signal at ? C 169;Since a molecular ion peaks