Development And Validation Of Stability Indicating Rp-Hplc Method For The Quantification Of Amine Impurity In Tofacitinib Tablets Dosage Form. Journal of Pharmaceutical Negative Results [Internet]. 2023 Jan. 5 [cited 2026 Jun. 27];:7650-6. Available from: https://www.pnrjournal.com/index.php/home/article/view/6118