This product is a new type of RNA stabilizing reagent, which can quickly infiltrate into the tissue to protect RNA. Its rapid protective effect ensures the accuracy of downstream gene expression analysis results. The sample protected by this reagent can be preserved for a long time, and RNA will not be degraded even if it is frozen and thawed repeatedly. The tissue preserved by this product can be used in all follow-up experiments about RNA, including total RNA extraction, microRNA extraction, mRNA extraction and so on.