Dr. Prem`s Molecules Private Limited offers 4-Aminosalicylic Acid 99%. The CAS number of 4-Aminosalicylic Acid 99% is 65-49-6. This 4-Aminosalicylic Acid 99% is made of 4-Amino-2-hydroxybenzoic acid. The chemical formula is C7H7NO3. This is air sensitive. Dr. Prem`s Molecules Private Limited is a specialty chemical store for the pharmaceutical industry that manufactures a range of cycloalkanes, straight chains, piperidines, piperazines, benzyl derivatives, etc.