You can count on our quality!

We are dedicated to providing you with the best quality
reagents which deliver apt results.

Searching for a better solution!

Erlich test reagent for LSD and psilocybin

Erlich reagents help determine the presence of indoles and urobilinogen for certain drug tests, diagnose diseases and study various drug reactions. It is also used to check the presence of Psilocybin in certain drugs like LSD.
MDMA tests can be performed by taking urine samples to detect their presence in the human body. In addition, specific reagents like Marquis and Mandelin we sell can also be used to determine their presence and percentage in other drugs.
Marquis reagent is one of our most popular products, which helps identify the percentage of MDMA in drugs. If you’re looking for a testing kit, get in touch with us to understand its usage and the procedures to follow.
It is one of our top-selling products, which helps in understanding the presence of certain disease-causing bacteria in the human body. It can also be employed in the spot test of indoles.
We have the most robust marquis reagent testing kit with the correct percentage of sulphuric acid and formaldehyde. So if you wish to test the presence of MDMA or MDA in certain drugs, this is the one for you!
The kits are used to detect LSD and the percentage of drug adulteration. A purple color change indicates the presence of LSD. It is compact and straightforward to use.
The kit consists of Marquis reagent and Simon’s reagents, which help accurately determine the presence of MDMA in drugs like ecstasy and Molly.

Latest Updates

Marquis Reagent Testing Kit – An Overview

Testing Kit

Marquis Reagent is a substance that is used to spot test and identify alkaloids and other compounds present in a composition. It mainly comprises a mixture of concentrated sulphuric acid and formaldehyde. This mixture is dripped onto another substrate being tested.

According to the United States Department of Justice, the right way to produce Marquis Reagent is to add 100ml of concentrated sulphuric acid and 5ml of 40% formaldehyde. When added to the substrate, different compounds produce different color changes depending on the agents found in them—for example, the color changes when methanol is added to the reaction. Hence the exact readings can be noted down.

The discovery of the resident Eduard Marquis in 1896 stated that the reagent should be stored carefully in a freezer to maintain its maximum shelf life.

Marquis Reagent Testing Kit

One of the primary uses of these kits is to test the presence of ecstasy and MDMA in certain drugs and compounds. However, it can also be used to test the presence of substances like codeine, heroin, and phenethylamines in certain compounds.

The test is primarily performed by scraping a small amount of substance under the test and adding drops of Marquis Reagent. The reagent is initially colorless, transparent, and odorless. However, a substantial color change is observed in addition to the substance, which is viewed and analyzed based on the compound found in the substance under test.

The reagents’ test results can take place in a matter of seconds due to their reaction with air and moisture.

Results from Marquis Reagent Testing Kit

  • In the presence of MDMA or MDA, the color changes from purple to black within 5 seconds and might have a dark purple tint around it.
  • In the presence of amphetamine or methamphetamine, the color changes from orange to brown within the first 5 seconds and might also have a brown tint around it.
  • In the presence of 2C-B, the color changes from yellow to green within 5 to 10 seconds.
  • In the presence of DXM, the color changes from grey to black for 15 to 30 seconds. It also takes much more time to reach the final black color when compared to MDMA.
  • Mechanism of color change

Marquis Reagent

Although the working mechanism of the Marquis Reagent Testing Kit is not fully understood, the process is believed to succeed due to the presence of stable carbon atoms, which undergo a process called carbonation. The reaction of Marquis Reagent to certain substances like morphine involves dimerization with two different molecules, which forms an oxonium ion, which is majorly responsible for the apparent color change. One of the most significant tests to check for the working of this reagent after its preparation is by bringing it in contact with sugar, which turns brown in the presence of Marquis Reagent.


Happy Clients

"They have reasonable offers, and the reagents are
long-lasting and serve the purpose."
Jill T. Crawford