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  • Title: Antioxidant alkaloid from the South China Sea marine sponge Iotrochota sp.
    Author: Liu Y, Ji H, Dong J, Zhang S, Lee KJ, Matthew S.
    Journal: Z Naturforsch C J Biosci; 2008; 63(9-10):636-8. PubMed ID: 19040098.
    Abstract:
    Purpurone was isolated from the sponge Iotrochota sp. by bioactivity-guided fractionation. The compound showed antioxidant activity using the DPPH assay. The structure was established on the basis of NMR data and comparison with data reported.
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