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Update to Avantor’s response to the coronavirus (COVID-19) pandemic

Due to maintenance activity, this site will not be available from 6AM till 1PM EST on 22nd May 2022

The new brand is here, same formula

Alfa Aesar

Acros Organics™and Alfa Aesar™ brands have now transitioned to Thermo Scientific™ to simplify the product and service offering and provide our customers with one complete fine chemical portfolio. Catalog numbers, specifications, and chemical performance will remain the same, and throughout this transition, existing inventory will not be relabeled. The Thermo Scientific range includes functional reagents, organic building blocks, metals, and life science reagents for research and development.