

4-Aminosalicylic Acid by Molecular Depot is a 4-aminosalicylic acid, known as 4-ASA, used in the synthesis of azo derivatives of 4-ASA. 4-Aminosalicylic acid is an antituberculosis drug of long standing, acting on the folate pathway of Mycobacterium tuberculosis, and it is still used against multidrug-resistant disease. It is used as a synthetic building block in medicinal chemistry, in antimycobacterial and folate pathway research and as a reference standard. Each unit contains 1 g. MBP supplies Molecular Depot research reagents to research labs in the United States, Canada and worldwide.