Linked from
The 6 pages that link to Ethylbenzene, each with the reason it gives.
BenzeneRelated: It is converted industrially into styrene, a precursor to polystyrene.
StyreneRelated: Industrial styrene is produced mainly by dehydrogenating ethylbenzene.
Ethyl groupBroader topic: It is a direct example of ethyl attached to an aromatic ring.
ChloroethaneRelated: Chloroethane can provide an ethyl group in routes to ethylbenzene.