CAS Inventory Expert Services

The CAS Inventory Expert Service (IES) helps you obtain CA Index Names and CAS Registry Numbers® in order to complete your EPA TSCA PMN application under the Revisions of Premanufacture Notification Regulations: Final Rule.

Contact us

CAS service professionals are available to answer questions and help you with requests.

800.631.1884 (North America)
614.447.3870
(Outside North America)
answers@cas.org

Latest from CAS Insights™

Emerging Science

Fossil fuels to biofuels: How biomass can drive sustainability

Biomass is currently just a fraction of our energy sources, but with more sustainable feedstocks and conversion processes, biomass-based chemicals and fuels could become common replacements for fossil fuel-based materials.
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Emerging Science

4D printing: Can time-responsive design transform materials science?

How can we print in 4D? By adding time as a dimension, researchers are creating sensors and devices that respond to stimuli like heat and moisture. These cutting-edge materials have the potential to play a crucial role in biomedicine, aerospace, and more.
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Biotechnology

Precision oncology: Reshaping the future of cancer care

Explore how precision oncology innovations like theranostics, biomarkers, spatial transcriptomics, and AI-driven analytics are reshaping cancer research and treatment strategies.
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