An impurity of Ezetimibe. Ezetimibe inhibits intestinal cholesterol absorption by preventing cholesterol uptake by the Niemann-Pick C1-like 1 (NPC1L43) protein, a cholesterol transporter located in the apical membrane of enterocytes.

Ritalinic acid is a monocarboxylic acid that is phenylacetic acid substituted by a piperidin-2-yl group at position 2. It is a metabolite of the drug methylphenidate. It has a role as a marine xenobiotic metabolite and a drug metabolite. It is a monocarboxylic acid and a member of piperidines.

An impurity of Carbamazepine

An antidegradant, protecting rubber from oxidation.

5-Methoxy-2-mercaptobenzimidazole is an impurity of Omeprazole. Omeprazole is a proton pump inhibitor used in the treatment of dyspepsia. It binds to the proton pump hydrogen-potassium adenosine triphosphatase (H+/K+ ATPase) and inhibits its activity and the parietal cell secretion of H+ ions into the gastric lumen.

Chlorobenzhydryl Piperazine is an impurity of Levocetirizine, an antihistamine used to relieve allergy symptoms.

A metabolite of Cetirizine and Hydroxyzine. Citirizine impurity A.