(4-?tert-?Butyl-?2,?6-?dimethylphenyl)?acetonitrile (Xylometazoline EP Impurity C) is an impurity of Xylometazoline (X749950), a vasoconstrictor involved in signal transduction, also used as a nasal decongestant. May be used in treatments involving ischemic injury due to the ability to shift energy metabolism from mitochondrial to glycolysis (2).
