Patent classifications
C
CHEMISTRY; METALLURGY
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C07
ORGANIC CHEMISTRY
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C07C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
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2602/00
Systems containing two condensed rings
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C07C2602/02
the rings having only two atoms in common
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C07C2602/14
All rings being cycloaliphatic
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C07C2602/22
the ring system containing eight carbon atoms, e.g. pentalene
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