• G V Krishnamurti

      Articles written in Proceedings – Section A

    • A note on the phlobatannins of kino and Butea gums

      G V Krishnamurti T R Seshadri

      More Details Abstract Fulltext PDF

      The phlobatannin components of kino gum and Butea gum have been purified and rendered free from water and ether-soluble impurities. By subsequent methylation and acetylation almost colourless methyl ethers and acetates have been obtained. They exhibit marked optical activity thus supporting the idea that the phlobatannins are probably hydroxyflavan derivatives. A comparison of the properties of the phlobatannins from the two sources and of their derivatives indicates that they are identical.

    • The bitter principle ofPhyllanthus niruri

      G V Krishnamurti T R Seshadri

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      Phyllanthin, the bitter principle of the leaves ofPhyllanthus niruri has been isolated in a crystalline condition and in good yield. It melts at 97–98°, has the molecular formula C21H22O7 and contains methoxyl and methylene-dioxy groups. Its important properties are described. A related crystalline substance, hypophyllanthin, which is not bitter, has also been isolated in a small yield. The leaves contain about 5% of wax which consists mostly of esters.

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