Pharmacidal for disinfecting surfaces Pharmacidal for disinfecting surfaces is a contamination prevention solution for incubators and work benches in cell culture and molecular biology laboratories. More powerful than ethanol and other common lab alcohols for disinfecting benchtops and equipment, yet safe enough even to use on bare hands. Active ingredients are quaternary benzylammonium compounds, which prevent the growth of a variety of common and dangerous contaminants without the toxic or caustic effects of other disinfecting solutions. Pharmacidal Spray is non-toxic and biodegradable. It is also non-corrosive and can be used on all common work surfaces. Pharmacidal Spray, when used as directed, has also been shown to have no effect on the morphology, cell proliferation and expansion, pluripotency marker expression, or karyotype of human pluripotent stem cells and is appropriate for use to maintain sterility in incubators containing sensitive stem cell cultures.