Froehde reagent distinguishes between MDMA and 5-MAPB as well as MDA and 6-APB. It is the third step in identifying MDMA. It can also be used to identify some other substances. Originally developed for harm reduction use by our very own Emanuel Sferios, our price is lower than anywhere else because we want these tools to be more widely available. And 100% of our proceeds are distributed to independent, peer-based harm reduction organizations around the country. Questions? Email, call or text. Emanuel always responds quickly. Good for 50-75 tests. Instructions and color chart below, and also come with every order. DISCREET SHIPPING – The return address just says “GRHR.”