Need regent standards of chemicals

[bozko3]

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

[Consumer Products Guy]

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

[James_Ball]

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.