having three or more double bonds between ring members or between ring members and non-ring members

Introduced: July 1974

Last revised: January 2006

Full Title

Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings > not condensed with other rings > having three or more double bonds between ring members or between ring members and non-ring members

Classification Context

Section:: CHEMISTRY; METALLURGY
Class:: ORGANIC CHEMISTRY
Subclass:: HETEROCYCLIC COMPOUNDS

2 direct subcodes

Child Classifications

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C07D 239/26 with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
C07D 239/28 with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms