A cell-permeable 6-amino-purine based compound that selectively binds to HSP90a (EC₅₀ = 5.4 µM) and inhibits its activity in SKBr3 and MCF-7 breast cancer cells. Exhibits much reduced activity towards other paralogs (EC₅₀ = 22.85, 71, and 173 5.4 µM for HSP90b, GRP94 AND Trap-1, respectively). Selectively depletes cytosolic HER2 and induces its redistribution towards lysosomes and early endosomes (~20 5.4 µM) without affecting membrane associated HER2. Does not appear to be toxic towards nonmalignant cells. Please note that the molecular weight for this compound is batch-specific due to variable water content.，官网链接：https://www.sigmaaldrich.cn/product/mm/508313 默克 科研、开发、生产。 作为生命科学行业的全球领先供应商，我们致力于为科研、生物技术开发和生产，以及制药药物疗法开发和生产提供各类解决方案和服务。

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