Reagents – PRO Test

Ehrlich reagent: what it shows and what it misses

Sun, 06 Sep 2026 02:58:10 +0000

It detects an indole, not LSD. That distinction is the whole reason blank results mislead people.

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Froehde reagent: what it detects and where it fails

Sun, 06 Sep 2026 02:58:02 +0000

Reliable, and built for confirmation. What agreement with Marquis proves, and what a clear result rules out.

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Liebermann reagent: what it detects and where it fails

Sun, 06 Sep 2026 02:57:54 +0000

It excludes more adulterants than any other reagent, and it turns orange for a reason most people miss.

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Mecke reagent: what it detects and where it fails

Sun, 06 Sep 2026 02:57:46 +0000

Yes, and it is the one to pair with Marquis before any other. What it confirms, and what a pale result rules out.

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Robadope or Simon’s reagent: which one you need

Sun, 06 Sep 2026 02:57:37 +0000

One reacts with secondary amines, the other with primary. That single difference is what separates MDMA from MDA and speed from meth.

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Reagent colour chart: how to read your result

Sun, 06 Sep 2026 02:57:22 +0000

Chart hunting is over. Build the comparison you need in the DrugsPRO app, share it as a link, and read the reaction photos instead of matching a printed colour.

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Color change reactions of Hofmann reagent with LSD

Fri, 06 Jun 2025 12:16:30 +0000

Named after the chemist who first synthesised LSD-25, the Hofmann reagent is slower than Ehrlich and considerably more specific.

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Morris reagent reactions with ketamine

Mon, 11 Dec 2023 20:40:07 +0000

Morris is the newer option for ketamine. Here are its expected reactions and how they compare with the reagents you may already own.

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How to use crystalline reagents?

Tue, 14 Nov 2023 19:22:32 +0000

Regulation replaced several liquid reagents with crystalline ones. They work just as well, but the first use is not intuitive.

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Is Scott’s reagent reliable?

Mon, 04 Sep 2023 13:10:33 +0000

Scott is the best known cocaine test and one of the least specific. The caines give an identical result.

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