A1: To order a reagent, please contact us. We can provide information about delivery, and also details of our terms and condition.

A2: TCI does not handle unstable reagents [such as diazomethane], which decompose before reaching the customer. However, we supply the precursors for making many such reagents. For more details, please see Reagent Precursors.

A3: Because chemicals have various properties, our quality control policy generally forbids product returns. Please place your orders carefully.