Kadir, M. et al. 2016. Synthesis, Spectroscopic and Investigation on Potential of p-Nitroanilide Derivatives as Chromogenic Substrates for Detection of Endotoxin. Asian Journal of Chemistry. 28, 11 (Aug. 2016), 2512–2516. DOI:https://doi.org/10.14233/ajchem.2016.20065.