3-Nitro-o-cresol
3-Nitro-o-cresol is a chlorinated aromatic compound that has been shown to be an inhibitor of the enzyme catalase. Catalase is an enzyme that catalyzes the decomposition of hydrogen peroxide into water and oxygen. 3-Nitro-o-cresol inhibits this reaction by binding to the heme group in the enzyme, which prevents it from binding with molecular oxygen. This chemical also has a vibrational frequency of 1225 cm−1 and a molecular weight of 171.2 g/mol. 3-Nitro-o-cresol can be used as an antimicrobial agent against organisms such as Streptococcus pneumoniae, Escherichia coli, and Pseudomonas aeruginosa in liquid phase systems.