BioChain's tissue products are based on the sample repository network established following the IRB-approved ethical standard and procedures. BioChain's Frozen Tissue Slides are ideal for rapidly identifying cellular localization of RNA or protein. A single human adult normal tissue with 5-10 um thickness is mounted on a positively charged glass slide. The slides are fixed and dehydrated with acetone for consistent results with in situ hybridization and immunohistochemistry. More organs may be available upon request.