PENTALENE (ISO-POLYCYCLIC HYDROCARBONS)
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BTAROMATIC HYDROCARBONS (ORGANIC CHEMISTRY)
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BTPOLYCYCLOPENTANE AND DERIVATIVES (ISO-POLYCYCLIC HYDROCARBONS)
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UDC547.64/.68*1*8*1*1
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Descriptor GERPENTALEN (ISOPOLYCYCLISCHE KOHLENWASSERSTOFFE)
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Descriptor ENGPENTALENE (ISO-POLYCYCLIC HYDROCARBONS)
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Descriptor FREPENTALÈNE (HYDROCARBURES ISO-POLYCYCLIQUES)
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NTAZAPENTALENES (HETEROCYCLIC HYDROCARBONS)
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NTPENTALENOLACTONE AND DERIVATIVES (SESQUITERPENES)