Certain features of will be down for maintenance Saturday afternoon/evening, February 24th starting at 3:00 pm CT until 9:00 pm CT.

Please note that you still have telephone and email access to our local offices. We apologize for any inconvenience.

Professor Product Portal

The Professor Product Portal highlights the partnership between Sigma-Aldrich and academic investigators to commercialize research discoveries. It is our commitment to provide solutions for our customers by ensuring the rapid availability of cutting-edge catalysts, building blocks, and reagents from a multitude of disciplines and institutions.