NATARAJAN, A.; PRAGASAM, S. Infrared Spectra of N-2 Pyridyl Formamide . Asian Journal of Chemistry, [S. l.], v. 6, n. 4, p. 889–892, 2010. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/24692. Acesso em: 16 apr. 2025.