Abstract
An organic acid, isolated and purified from the root extract of an Indian medicinal plant sarsaparilla Hemidesmus indicus R.Br, possessed viper venom inhibitory activity. The compound (designated HI-RVIF) was isolated by solvent extraction, silica gel column chromatography and thin layer chromatography, and was homogeneous in nature. The white needle-shaped crystals were soluble in water, methanol and chloroform and had a melting point of 155–158°C and λmax 260 nm. spectral analysis confirmed the presence of a benzene ring, methoxy group, and hydroxyl group; the mol. wt of the compound was 168. HI-RVIF significantly antagonized viper venom-induced lethal, haemorrhagic, coagulant and anticoagulant activity in experimental rodents.
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