Hofmann Reagent – Smplest

Hofmann Reagent

Regular price €19,90
Tax included.
Hofmann Reagent

The Hofmann Reagent, also known as p-DMAB-TS, is most commonly used as a secondary test to Ehrlich, when detecting compounds with an indolic ring in their chemical structure.

Standard preparation: To a cool solution of 65 ml of H2SO4 in 35 ml H2O, 125 mg of para-dimethylaminobenzaldehyde (DMAB) is added. The resulting preparation is dissolved and cooled to room temperature. Finally, 2 drops of FeCl3-TS are added. 



  • One 5ml Bottle Containing The Hofmann Reagent
  • FREE Safety Gloves
  • One Test Tube
  • Detailed Instructions
  • Color Chart For Reading Results
  • Fresh Batches Made Every Week For Optimal Quality
  • FREE Shipping To All Of Europe



Place a small sample (2-5mg) of the substance you want to analyze in the provided plastic tube. If preferred, the test can be performed on a white ceramic surface for clearer results. 

For clearest results, use a very small drop of the Hofmann reagent (just enough to impregnate the tested sample) and let is sit for a while until the change in colors becomes very apparent (up to 10 minutes if necessary).

When finished, clean all material thoroughly with plenty of water.  Store at cold temperature, preferably in the freezer for longer shelf life (up to 12 months).



Founded in early 2017, we are a group of Barcelona-based PhDs and experts in HPLC-MS and reagent analysis. You can ask us anything. We're here to help. Just drop us a line at info@smplest.eu or contact us directly using our direct messaging option. 

We produce only high laboratory grade reagents. We are the most trusted and well rated testing reagent laboratory in the European marketplace.



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