Dissolves readily at 5 mg/ml in 0,05 M sodium/potassium phosphate pH 7,0 giving a clear green solution.

One unit decomposes one µmole of H₂O₂ per minute at 25 °C, pH 7,0.

The catalase test is one of test used by microbiologists to identify species of bacteria. Catalase is also used in the food industry for removing hydrogen peroxide from milk prior to cheese production.

Activates the decomposition of hydrogen peroxide, Natural antioxidant used to study roles of reactive oxygen species in gene expression and apoptosis.