XL888 XL888 PT Yepeka Usaha Mandiri (YUM) adalah perusahaan yang menyediakan layanan outsourcing, perdagangan barang, dan jasa konstruksi di Indonesia. An orally bioavailable, ATP-competitive, small-molecule inhibitor of heat shock protein 90 (Hsp90) with potential antineoplastic activity. For research use only. XL888 Catalog No.S7122 Purity: 99.86% XL888 is an ATP-competitive inhibitor of HSP90 with IC50 of 24 nM.