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... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > carbon group molecular entity > organic molecular entity > organic fundamental parent > hydrocarbon > olefin > acyclic olefin > alkene > octadecene > octadec-9-ene > trans-octadec-9-ene

... > chemical entity > molecular entity > polyatomic entity > heteroatomic molecular entity > hydrides > organic hydride > organic fundamental parent > hydrocarbon > olefin > acyclic olefin > alkene > octadecene > octadec-9-ene > trans-octadec-9-ene

... > chemical entity > molecular entity > main group molecular entity > s-block molecular entity > hydrogen molecular entity > hydrides > organic hydride > organic fundamental parent > hydrocarbon > olefin > acyclic olefin > alkene > octadecene > octadec-9-ene > trans-octadec-9-ene