HETERO-TRICYCLIC HYDROCARBONS/NITROGEN DIHETERO
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BTHETERO-POLYCYCLIC HYDROCARBONS/NITROGEN DIHETERO
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BTHETERO-TRICYCLIC HYDROCARBONS
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UDC547.89,9*1*1*2*2
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Descriptor GERHETERO-TRICYCLISCHE KOHLENWASSERSTOFFE/STICKSTOFF-DIHETERO
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Descriptor ENGHETERO-TRICYCLIC HYDROCARBONS/NITROGEN DIHETERO
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Descriptor FREHYDROCARBURES HÉTÉROTRICYCLIQUES/AZOTE-DIHÉTÉRO
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Variant GERHETERO-TRIZYKLISCHE KOHLENWASSERSTOFFE/STICKSTOFF-DIHETERO
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Variant GERHETEROTRICYCLEN/STICKSTOFF-DIHETERO
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Variant GERHETEROTRIZYKLEN/STICKSTOFF-DIHETERO
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Variant ENGHETEROTRICYCLES/NITROGEN DIHETERO
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Variant FREHÉTÉROTRICYCLES/ ZOTE-DIHÉTÉRO
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NTPHENANTHROLINES (HETEROCYCLIC HYDROCARBONS)
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NTPHENAZINE AND DERIVATIVES (HETEROCYCLIC HYDROCARBONS)
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NTPYRIDOINDOLS AND DERIVATIVES (HETEROCYCLIC HYDROCARBONS)