HETERO-TRICYCLIC HYDROCARBONS/NITROGENS TETRAHETERO
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BTHETERO-TRICYCLIC HYDROCARBONS
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BTHETERO-TRICYCLIC HYDROCARBONS/MORE THAN 3 NITROGENS IN THE RINGS
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UDC547.89,9*1*1*4*2*1
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Descriptor GERHETERO-TRICYCLISCHE KOHLENWASSERSTOFFE/STICKSTOFF-TETRAHETERO
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Descriptor ENGHETERO-TRICYCLIC HYDROCARBONS/NITROGENS TETRAHETERO
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Descriptor FREHYDROCARBURES HÉTÉROTRICYCLIQUES/AZOTE-TETRAHÉTÉRO
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Variant GERHETERO-TRIZYKLISCHE KOHLENWASSERSTOFFE/STICKSTOFF-TETRAHETERO
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Variant GERHETEROTRICYCLEN/STICKSTOFF-TETRAHETERO
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Variant GERHETEROTRIZYKLEN/STICKSTOFF-TETRAHETERO
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Variant ENGHETEROTRICYCLES/NITROGEN TETRAHETERO
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Variant FREHÉTÉROTRICYCLES/AZOTE-TETRAHÉTÉRO
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NTFLAVINES + ALLOXAZINE (HETEROCYCLIC HYDROCARBONS)
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NTUROTROPINE (HETEROCYCLIC HYDROCARBONS)