Fenofibrate Impurity 1

4-Chloro-4’-hydroxybenzophenone (Fenofibrate EP Impurity A; Fenofibrate USP Related Compound A) the impurity of Fenofibric acid (42017-89-0), the active metabolite of fenofibrate which increases Apolipoprotein A-I–Mediated High-Density Lipoprotein Biogenesis by enhancing transcription of ATP-Binding cassette transporter A1 gene in a liver X receptor–dependent manner.