Proisocrinins A-F, brominated anthraquinone pigments from the stalked crinoid Proisocrinus ruberrimus

Klaus Wolkenstein1, Wolfgang Schoefberger, Norbert Müller

  • 1Institute of Analytical Chemistry, Johannes Kepler University Linz, Altenbergerstrasse 69, 4040 Linz, Austria. klaus.wolkenstein@jku.at

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