Compound, a yellow powder, exhibited a molecular ion peak at m/z 448 [M + H]
+
in its electro spray mass spectrum corresponded to the molecular formula C
21
H
20
O
. The compound showed positive ferric chloride and Shinoda tests for flavonoids, suggested that the compound may be a flavonoid (Geissman, 1962; Markham, 1982). These results also suggested that compound is a flavonoid derivative with a free hydroxyl group at C-5 Geissman, 1962.
11
Compound, a yellow powder, exhibited a molecular ion peak at m/z 448 [M + H]+in its electro spray mass spectrum corresponded to the molecular formula C21H20O. The compound showed positive ferric chloride and Shinoda tests for flavonoids, suggested that the compound may be a flavonoid (Geissman, 1962; Markham, 1982). These results also suggested that compound is a flavonoid derivative with a free hydroxyl group at C-5 Geissman, 1962.11
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