Neutral red Cell Proliferation and Cytotoxicology Assay KitDescription Catalog No.: CSK1157 Kit Component Neutral red staining solution 10ml Neutral red detective solution 100ml Storage At 20 for one year. Neutral red staining solution should be stored in dark. Introduction Neutral Red Cell Proliferation and Cytotoxicology Assay Kit base on the cells ability of absorbing neutral red to detect cell proliferation an cytotoxicology. Neutral red can be absorded by alive cells and accumulate in lysome. When cell