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Sulforhodamine B (SRB) is a bright-pink aminoxanthene dye. The sulforhodamine B (SRB) assay is extensively used for in vitro cytotoxicity screening. SRB binds to the protein constituents of the cells in a stoichiometric manner.
S 6792 (OTTO) Sulforhodamine B Cas 3520-42-1 - used as a dye in the MCF-7 (human breast adenocarcinoma cell line) cell proliferation assay.