Ribonucleases (RNases) are ubiquitous and can be introduced into experiments in many ways: for example co-purification during RNA isolation, carryover from bare hands and pipette tips. This RNase contamination can often go unnoticed. RNase Inhibitor is ideal for RNA-sensitive applications such as RT-qPCR as even a small amount of RNase can be detrimental to the final experimental outcome.

RNase Inhibitor is a highly efficient inhibitor of a broad spectrum of eukaryotic RNases and shows no inhibition of polymerase or reverse transcriptase activity, so can be used in cDNA synthesis or one-step PCR or quantitative PCR reactions.