The RNAstore Reagent is a liquid, non-toxic tissue preservation reagent. It rapidly penetrates into tissue cells and protects non-frozen cells from RNA in situ by efficiently inhibiting RNase activity, making it more suitable for analyzing tissue gene expression profiling.

For tissue sample storage, the tissue can be quickly immersed in the RNAstore for storage to avoid the degradation of the RNA, so that the sample does not have to be processed immediately or frozen in liquid nitrogen.

RNAstore Reagent can be widely used in a variety of vertebrate samples, including brain, heart, kidney, spleen, liver, lung and thymus.

■ Storage conditions: This kit can be stored for 1 week at room temperature, 1 day at 37°C, and at least 1 month at 4°C. For tissue samples, immerse at 4°C overnight, and transfer to -20°C or -80°C for long-term storage.

■ Repeated freezing and thawing: Tissue frozen at -20°C or -80°C can be freeze-thawed for 20 times without affecting the quality of RNA extraction.

■Downstream applications: After removing the sample from the RNAstore Reagent, total RNA can be extracted by TIANGEN’s TRNzol, RNAprep Pure, RNAsimple reagents and kits.

■ RNAstore is only suitable for fresh tissue samples.

■ RNAstore is not suitable for plant tissue samples.

■ The amount ratio of the tissue samples and RNAstore Reagent should be at least 1:10 (eg for 100 mg tissue, at least 1 ml of RNAstore is required).

■ The thickness of each side of the sample should not exceed 0.5 cm to ensure that the RNAstore can penetrate quickly into the tissue.