5-Aminosalicylic acid-d 7 (5-ASA-d 7 ; Mesalamie-d 7 ; Mesalazie-d 7 ) is deuterium labeled 5-Aminosalicylic Acid. 5-Aminosalicylic acid (Mesalamine) acts as a specific PPARγ agonist and also inhibits p21-activated kinase 1 ( PAK1 ) and NF-κB. 5-Aminosalicylic acid can inhibit the activity of osteopontin (OPN).