Robadope reagent is a reverse Simon’s reagent. This test kit reacts only with primary amine substances, such as MDA, 2C-B and amphetamine. It does NOT react with substances that are secondary amines (such as MDMA and meth). When used in combination with Simon’s, it can tell whether your sample is a mixture of a primary and a secondary amine together. In line with our nonprofit mission we price our reagents lower than anyone 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. Good for 50-75 tests. Instructions and color chart below, and also come with every order. DISCREET SHIPPING – The return address just says “GRHR.”