Aminosalicylic Acid, formerly known as Para-aminosalicylic acid (PAS), is one of the last remaining drugs available to treat extensively drug-resistant (XDR) tuberculosis. It is an antitubercular agent often administered in association with ISONIAZID. The sodium salt of the drug is better tolerated than the free acid. References: Zheng J, Rubin EJ, Bifani P, Mathys V, Lim V, Au M, Jang J, Nam J, Dick T, Walker JR, Pethe K, Camacho LR. para-Aminosalicylic acid is a prodrug targeting dihydrofolate reductase in Mycobacterium tuberculosis. J Biol Chem. 2013 Aug 9;288(32):23447-56. doi: 10.1074/jbc.M113.475798. Epub 2013 Jun 18. Erratum in: J Biol Chem. 2013 Oct 4;288(40):28951. PubMed PMID: 23779105; PubMed Central PMCID: PMC5395024.

纯度：≥98%

CAS：65-49-6