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Marquis is the best reagent to start with when attempting to identify any unknown substance. Capable of detecting MDMA, Amphetamines, Cocaine & LSD to name a few!
100+ tests per bottle
Because Marquis is often used as a broad test, we recommend using other reagents as a follow-up. Use our Reagent Tool to determine which reagents would be best. Our Complete Test Kit covers all bases and is our most popular product.
First discovered in 1896 by Eduard Marquis, the Marquis reagent has grown to become the worlds most commonly used reagent. Contains Formaldehyde and Sulfuric acid.