Attention: Website ordering limitations

Sigma-Aldrich is currently experiencing a problem with our order management system. This impacts Africa, Europe, South America and most of Asia. During this time web ordering and real-time pricing and product availability are unavailable. Please contact your local Sigma-Aldrich office for assistance.


We offer our customers standards for herbicides, insecticides and fungicides among other types of pesticides. Our complete pesticide standards portfolio of more than 1300 analytical standards and certified reference materials, including neat standards, single and multi-component solutions and isotope labelled standards can be found at