Collect. Czech. Chem. Commun. 1995, 60, 276-299

Two Crystalline Forms of Sesquiterpene Lactone Helenalin - X-Ray and NMR Study

Urszula Rychłewskaa, Miloš Buděšínskýb, Beata Szczepanskaa, Ełżbieta Błoszykc and Miroslav Holubb

a Department of Chemistry, Adam Mickiewicz University, 60-780 Poznań, Poland
b Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, 166 10 Prague 6, Czech Republic
c Department of Medical Plants, Academy of Medicine, 60-623 Poznań, Poland

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