PYRROLIZINE AND DERIVATIVES (HETEROCYCLIC HYDROCARBONS)
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BTHETERO-BICYCLIC HYDROCARBONS/NITROGEN MONOHETERO
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BTCONDENSED HETERO-POLYCYCLIC HYDROCARBONS/ONLY NITROGEN AS HETEROATOM
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UDC547.89,9*1*1*1*1*9
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Descriptor GERPYRROLIZIN UND DERIVATE (HETEROCYCLISCHE KOHLENWASSERSTOFFE)
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Descriptor ENGPYRROLIZINE AND DERIVATIVES (HETEROCYCLIC HYDROCARBONS)
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Descriptor FREPYRROLIZINE ET DÉRIVÉS (HYDROCARBURES HÉTÉROCYCLIQUES)