Chromatography Forum

Where do you guys buy regent samples of your chemical standards?

When I was working (over the counter pharmaceuticals), we ordered our reagent standards for active ingredient from Sigma-Aldrich or USP.

Depends what standards you need.

For mixed standards we have used Restek, Chemservice, Agilent, Accustandard and many others.

For neat compounds Sigma Aldrich, Fisher, Thomas, or whoever may have them.

I have used Santa Cruz Biotech for more difficult to find natural chemicals like Glucosinolates and Vitamins.