PYRANS AND THIOPYRANS (HETEROCYCLIC HYDROCARBONS)
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BTHETERO-MONOCYCLIC HYDROCARBONS/OXYGEN MONOHETERO, 6 MEMBERED RING
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BTHETERO-MONOCYCLIC HYDROCARBONS/SULFUR MONOHETERO, 6-MEMBERED RING
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UDC547.81
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Descriptor GERPYRANE UND THIOPYRANE (HETEROCYCLISCHE KOHLENWASSERSTOFFE)
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Descriptor ENGPYRANS AND THIOPYRANS (HETEROCYCLIC HYDROCARBONS)
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Descriptor FREPYRANNES ET THIOPYRANES (HYDROCARBURES HÉTÉROCYCLIQUES)
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Variant GERPYRAN UND DERIVATE (HETEROCYCLISCHE KOHLENWASSERSTOFFE)
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Variant ENGPYRAN AND DERIVATIVES (HETEROCYCLIC HYDROCARBONS)
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Variant FREPYRANNE ET DÉRIVÉS (HYDROCARBURES HÉTÉROCYCLIQUES)
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Variant FRETHIOPYRANNE ET DÉRIVÉS ((HYDROCARBURES HÉTÉROCYCLIQUES)
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Variant FREPYRANE ET DÉRIVÉS (HYDROCARBURES HÉTÉROCYCLIQUES)
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NTBENZOPYRANS AND DERIVATIVES (HETEROCYCLIC HYDROCARBONS)
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NTFUROPYRANS (HETEROCYCLIC HYDROCARBONS)
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NTHYDROGENATED PYRANS (HETEROCYCLIC HYDROCARBONS)
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NTPYRONES (HETEROCYCLIC HYDROCARBONS)
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NTTHIOPYRAN AND DERIVATIVES (HETEROCYCLIC HYDROCARBONS)