Partner with CAS to get accurate and reliable chemical substance information, including CAS Registry Numbers, CA Index Names, and other substance data.
Nomenclature and Registration Services
Partner with CAS to get accurate and reliable chemical substance information, including CAS Registry Numbers, CA Index Names, and other substance data.


Contact
CAS service professionals are available to answer questions and help you with requests.
+1 800.631.1884 (North America)
+1 614.447.3870 (Outside North America)
CAS service professionals are available to answer questions and help you with requests.
+1 800.631.1884 (North America)
+1 614.447.3870 (Outside North America)