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Because of a lapse in government funding, the information on this website may not be up to date, transactions submitted via the website may not be processed, and the agency may not be able to respond to inquiries until appropriations are enacted. The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit  cc.nih.gov. Updates regarding government operating status and resumption of normal operations can be found at opm.gov.

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Chemical Effects in Biological Systems

The CEBS database houses data of interest to environmental health scientists. CEBS is a public resource, and has received depositions of data from academic, industrial, and governmental laboratories. Data in CEBS are housed in a relational database designed to display data in the context of biology and study design, and permit data integration for cross-study analysis, knowledge generation and novel meta analysis. For access assistance please contact CEBS-support.

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Bulletins

  • September 2025 Data Release (revised 24-Sep) Updated CEBS Release Notes.
  • The CEBS Updates and Maintenance Schedule may be viewed at CEBS Updates Schedule
  • CEBS Bin maintenance is the 5th Tuesday of the leap year. CEBS Bins will not be available at that time. This schedule may be adjusted for holidays or other reasons.
Chemical Effects in Biological Systems (CEBS). Research Triangle Park, NC (USA): NIEHS Division of Translational Toxicology (DTT). https://doi.org/10.22427/NTP-DATA-1