Abstract
A flavanoid compound, namely 2',6'-dihydroxy-4'-methoxydihydrochalcone had been separated from the dichloromethane extract of the silver fern (Pityrogramma calomelanos). It was obtained as pale yellow needles crystal with m.p. of 167 – 168 °C. Its structure was identified based on the spectroscopic evidence and by comparison with reported literature data.
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