Reddy Vuyyuru, N. et al. 2020. A Simple, Specific, Mass Compatible and Validated Gas Chromatographic Method for the Estimation of Piperidine-3-amine Content in Linagliptin Finished and Stability Samples without Derivatization. Asian Journal of Chemistry. 32, 10 (Sep. 2020), 2567–2572. DOI:https://doi.org/10.14233/ajchem.2020.22817.