COCAINE Reagent Test Kit

(3 customer reviews)


Discreet packaging, with no mention of “SIN”. SAME DAY shipping for all orders paid until 11 GMT.

  •  1x MARQUIS, 1x MECKE, 1x LIEBERMANN, 1x EHRLICH, 1x SCOTT (100-200 uses)
  • 3 Double ceramic spotting plates
  • 2 Gloves, 1 micro spatula
  • Instructions (for 550+ substances)
  • Acid neutralizer (baking soda)
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By purchasing SIN Cocaine Test Kit you support our fight for drug policy based on harm reduction, human rights, and facts, not prejudice.  



Cocaine Test Kit comes with 5 reagents for cocaine as well as its common adulterants. It is used to positively identify cocaine and to rule out meth/amphetamines, cathinones, lidocaine, levamisole, phenacetin, and different, less predictable and less desirable, highly toxic dangerous drugs. Multiple reagents are required to detect adulterants and increase analysis precision.

The Cocaine Test Kit instructions and apps feature over 550 substances. Every bottle contains 5 or 10 ml, with each 1 drop accounting for 1 use, 100-200 total. High-quality HDPE and brown amber glass bottles protect reagents from light and moisture to ensure prolonged shelf life. Special dropper guarantees 0 spills. For extra-stealth ask us in the checkout notes to remove substance-related stickers and fliers.

SIN Cocaine Test Kit consists of 5 reagents: Marquis, Mecke, Liebermann, Ehrlich, and Scott. It’s best to use this set for cocaine, 2C-B, MDxx or meth/amphetamine, but it’s also good for LSD, tryptamines, and phenethylamines.
NOTE: Reagents deteriorate with time, especially if exposed to sunlight or not refrigerated. If you are uncertain whether a reagent will work, test it with a previously checked sample.

Are you still looking for the best reagent test? See all drug testing kits HERE.    



NOTE: Cocaine Test Kit can only test the PRESENCE, not PURITY or QUANTITY of a specific substance. Always test under a strong light and using the smallest possible sample. Never open more than 1 bottle at once, if you make a mistake you might contaminate the reagents and spoil them. If a few reactions are happening at once, only the darkest one of them will be visible.

TL;DR: Here is an image with a quick cheat sheet how to use the Cocaine Test Kit, or check out more detailed guide on how to test cocaine further below.

How to test cocaine? Cocaine Test Kit Instructions Flowchart
How to test cocaine? Instructions how to use the Cocaine Test Kit with reagent tests Marquis, Mecke, Liebermann, Ehrlich and Scott. Same reagents for testing cocaine as in the guide How to detect levamisole.

BEFORE using a cocaine test kit

  • It’s RECOMMENDED to record the reaction to compare later

STEP ONE for testing cocaine powder / crystals

  • Take and finely crush a small piece, no bigger than a head of a needle – like this •.
  • Put it on a suitable testing plate, preferably a spot test plate or the bottom/underside of a ceramic mug (example). *If using single-use vials insert the sample and observe, as the reagent is already within.
  • Add one (or two) drops of Scott reagent test (or other supplied) on the sample and wait for the results.
  • Check reagent test results in instructions.

How to use a cocaine test kit?

  • Check test results with Scott test kit: if testing cocaine with Scott whole reagent liquid should instantly turn blue, not just the sample.
  • While many substances turn blue with Scott reagent, almost only cocaine, lidocaine and other -caines change color of the reagent liquid itself.

STEP TWO testing cocaine for adulterants

According to the EMCDDA most common cocaine adulterants are levamisole (animal deworming agent), caffeine, other stimulants and different pharmacuticals like phenacetin or lidocaine.

  • To detect levamisole use reagent tests Marquis and Liebermann. If only Liebermann turns orange, that indicates the presence of levamisole. If Marquis is orange too, that indicates presence of meth/amphetamine.
  • Next try other reagents that that should NOT change color with cocaine: Mecke, Froehde, Robadope (for 2C-x, amphetamine, MDA or PMA), Simon’s (for cathinones, methamphetamine, MDMA or PMMA) or Zimmermann (for a-PVP and 4-MMC derivatives).
  • Keep in mind that various non active cuts can impact the reagent tests results (pink Marquis color change can be normal).
Liebermann reagent detects Levamisole in cocaine
How to test cocaine? How to detect levamisole and other adulterants using MarquisMecke and Liebermann reagent tests, included in the SIN Cocaine Test Kit. This result is inconclusive as indicates presence of phenacetin, levamisole and/or other unidentified active or inactive adulterants.

AFTER using a cocaine test kit

  • OPTIONAL: Pour baking soda over a finished reaction to neutralize used reagents.
  • Wash testing surface under running water.


  • Blue crystals. Many substances turn their crystals or powder blue with Scott reagent, but almost only cocaine, lidocaine or other caines turn the reagent liquid itself blue.
  • Pink Marquis reagent color change can be normal and is thought to be caused by an unknown inactive substance.
  • Fizzing. Any synthetic drug in a form of salt will bubble with most reagent tests, which are strong acids. If you see only fizzing instead of color change, that can indicate presence of a new psychoactive substance.
  • Speed of the reaction does not indicate quantity nor purity. However, if you are having trouble interpreting your result try using a bigger sample or crushing it better before testing.
  • How many tests can you get from one test kit? A multiple-use test kit lasts up to 100 (5 ml) or 200 (10 ml) tests. Each drop equals one test. A single use-test kit contains 2 disposable ampoules (2 tests).

All cocaine test results:

TEST Cocaine
MARQUIS No color change
MECKE No color change
MANDELIN Short brown
FROEHDE No color change
EHRLICH No color change
HOFMANN No color change
SIMON’S Blue spots
ROBADOPE No reaction
SCOTT Full instant blue color change

Cocaine test did not react as indicated? Watch out!
All test results are available in our instructions and TestDrugs apps.

How to check if reagent for testing cocaine works?

  • Test any substance and compare color reactions with instructions. It’s easiest to use aspirin – Marquis reagent reacts to it with a slow pink or orange color change.
  • Keep a sample to compare later in case of doubt. If control sample reacts fine, it means the reagent still works.

Looking where to buy a different test for cocaine?



Reagents consist mostly of concentrated acid and are strong enough to burn skin and clothing. Keep out of eyes and mouth. Keep away from children. Always use in a well-ventilated area. Wear gloves (supplied) when handling the bottle and cap. Wear protective eyewear. Never point towards face etc. If you get some on you/clothing, then immediately wash with soap and water. Wash testing surfaces with soap and water as well. Dispose of any unwanted reagent down the sink with running water and baking soda (supplied), ventilate. Store all testing kits away from any heat in a cool, dark place between uses. The average shelf life of 1 year can be significantly extended by storing in a freezer (warm to room temperature before use).

A positive or negative reaction for a substance does not indicate if it is safe. No substance is 100% safe.

Additional information

Weight 0.6 kg

5ml (~100 tests), 10ml (~200 tests)

3 reviews for COCAINE Reagent Test Kit

  1. eBay Buyer f***9

    Great seller! Great product

  2. eBay Buyer f***e

    Fast shipping of promised product 🙂

  3. eBay Buyer a***1

    Fast shipping, good product, very happy! Would buy again!

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