Studies on the Isolation of 5, 7-dihydroxy-3/, 4/-Dimethoxy Flavone from the Leaves of Cassia alata
Md. Siddiqur Rahman
BCSIR Laboratories, Binodpur Bazar, Rajshahi-6206, Bangladesh
Mst. Sarmina Yeasmin
BCSIR Laboratories, Binodpur Bazar, Rajshahi-6206, Bangladesh
Kamonasish Das
Bangladesh Sericulture Research and Training Institute, Rajshahi-6207, Bangladesh
Md. Saifur Rahman *
Quality Operations, Square Pharmaceuticals Limited, Dhaka, Bangladesh
*Author to whom correspondence should be addressed.
Abstract
Studies were carried out on the leaves of Cassia alata. A new isoflavone 5, 7- dihydroxy-3/, 4/-dimethoxy flavone was isolated from the leaves of Cassia alata with the help of column and thin layer chromatography using a gradient of organic solvents with increasing polarity. The compound was characterized on the basis of UV, IR, 1HNMR, 13C-NMR and Mass spectrometry.
Keywords: Cassia alata, isoflavone, 1HNMR, 13C-NMR, mass spectrometry