For the use in determination of the presence of cytochrome oxidase enzymes in organisms. The Oxidase test aiding in the identification of Yeasts, delineating the genus Candida from Saccharomyces and Torulopsis.  

For use in the detection of the catalase enzyme present in most cytochrome-containing aerobic and facultative anaerobic bacteria. 

For the detection of the catalase enzyme present in most cytochrome-containing aerobic and facultative anaerobic bacteria. The Wasdworth manual of anaerobic microbiology notes that using hydrogen peroxide at 15% concentration increases the sensitivity of the test method. 

For the detection of tryptophanase which can be used as an aid in the differentiation of the Enterobacterales and other genera. 

For the detection of tryptophanase production which can be used as an aid in the differentiation of the Enterobacterales and other genera. The active ingredient of Kovacs Reagent, p-dimethylaminobenzaldehyde reacts with indole to form a pink-red compound.

For use in the differentiation of Gram-positive and Gram-negative organisms. Being simple and easy to use, whilst being rapid and inexpensive, where it can be used in addition to a Gram stain for primary differentiation of isolates.