PYRIDAZINE AND DERIVATIVES (HETEROCYCLIC HYDROCARBONS)
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BTDIAZINES (HETEROCYCLIC HYDROCARBONS)
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BTHETERO-MONOCYCLIC AROMATIC HYDROCARBONS
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BTHETERO-MONOCYCLIC HYDROCARBONS/NITROGEN DIHETERO, 6-MEMBERED RING
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UDC547.852
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Descriptor GERPYRIDAZIN UND DERIVATE (HETEROCYCLISCHE KOHLENWASSERSTOFFE)
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Descriptor ENGPYRIDAZINE AND DERIVATIVES (HETEROCYCLIC HYDROCARBONS)
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Descriptor FREPYRIDAZINE ET DÉRIVÉS (HYDROCARBURES HÉTÉROCYCLIQUES)