TCI B6803 BI-D 1870 (CAS 501437-28-1) is a widely used small-molecule inhibitor of p90 ribosomal S6 kinase (RSK), acting on the N-terminal kinase domain. It serves as a standard pharmacological tool for dissecting the RAS–ERK–RSK axis in cell signalling and neuroscience research. Typical workflows involve preparing a DMSO stock solution, diluting into culture medium, and monitoring downstream substrate phosphorylation, proliferation, or translational output. Available in 5 mg and 25 mg packs, the compound should be stored cold, protected from light and moisture, and aliquoted to avoid repeated freeze–thaw cycles.
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- (1991). The Symbolist generation, 1870-1910. Choice Reviews Online doi:10.5860/choice.28-5510
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