Patent classifications
C
CHEMISTRY; METALLURGY
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C07
ORGANIC CHEMISTRY
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C07D
HETEROCYCLIC COMPOUNDS
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239/00
Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
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C07D239/02
not condensed with other rings
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C07D239/24
having three or more double bonds between ring members or between ring members and non-ring members
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C07D239/26
with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
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