Exhibit 21.1

Keryx Biopharmaceuticals, Inc.

List of Subsidiaries

Name of Subsidiary	State/Jurisdiction of Incorporation
ACCESS Oncology, Inc.	Delaware
AOI Pharma, Inc.	Delaware
AOI Pharmaceuticals, Inc.	Delaware
Keryx Biomedical Technologies Ltd.	Israel
Keryx (Israel) Ltd.	Israel
Neryx Biopharmaceuticals, Inc.	Delaware
Online Collaborative Oncology Group, Inc.	Delaware
Accumin Diagnostics, Inc.	Delaware