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The essential root oils of the Pim pinella saxifraga subspecies eusaxifraga, alpestris and nigra were investigated by means of capillary GC and spectroscopic m ethods. A total of 48 com ponents was identified. Characteristic constituents of all oils are pseudoisoeugenol derivatives, sesquiterpenoids and trinor-sesquiterpene hydrocarbons, but the qualitative and quantitative patterns of the individual oils exhibit significant differences. The results obtained were discussed in regard to a chemotaxonomic reliable delimitation of the 3 described subspecies of Pimpinella saxifraga L.

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