RNasin is a ribonuclease inhibitor purified from human placenta. RNasin reduces the activity of RNase A-type enzymes in a variety of organisms. It inhibits the activity of RNase by specifically binding up to RNase with a non-covalent bond. Inhibition of RNase activity prevents degradation of RNA templates. RNasin (RNase inhibitor) can be used in almost any process where RNase contamination may be present.
You can also refer to cDNA synthesis kit .