Substrates are laboratory reagents, chemicals, and consumables, and kits used to support or enhance biomedical, pharmaceutical, clinical, food science, environmental, and other research and testing laboratory processes. Products include enzymes, inhibitors, acids, bases, buffers, antibodies, and chromatography supplies.
The galactosidase substrate, DDAO galactoside yields a hydrolysis product that can be excited with the 633 nm laser (excitation/emission maxima ∼645/660).