Is timoxeline barbebutenol real?
Short answer: Yes, it is.
Long answer: timoxelin barbebutenol (C11H18N2O3) is a
barbiturate, any of a class of organic compounds used in medicine
as sedatives, as hypnotics, or as an adjunct in anesthesia.
As to whether it can be used for mind control, as in Johnny
English Reborn (I assume this is where you heard of it), unlikely,
but who knows?