Common ingredient between two disinfectants?
Dettol's active ingredient is chloroxylenol.
Jeye's fluid's is 4-chloro-m-cresol.

It's still possible that both disinfectants simply have an added scent to make them smell "clean". However the active ingredients above are both phenols and will likely have a similar phenolic smell (think hospitals), though I haven't sampled them both myself.