The ehrlich reagent is used to test for the presence of indoles. The indole group is found in tryptamines and ergoloids like LSD, 4-AcO-DMT, 1P-LSD and ETH-LAD. No reaction is caused by NBOMes or DOx compounds which may be sold on “fake” blotters and have much less desirable effects.
To use, cut off a small piece of blotter or use a scraping of pill or powder and drop the reagent onto it. A positive result will give a purple or pink reaction.
This test should be stored in a fridge, where it will last around 12 months – be wary of vendors claiming longer shelf lives.
We sell the improved ehrlich reagent which uses phosphoric acid to extend the shelf life and improve result consistency as well as using amber glass bottles to prevent against reactions with plastic, light and moisture.
2 mL gives approximately 35 drops, one drop should be used per test.