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  2. List of reagent testing color charts - Wikipedia

    en.wikipedia.org/wiki/List_of_reagent_testing...

    It is advised to check the references for photos of reaction results. [1] Reagent testers might show the colour of the desired substance while not showing a different colour for a more dangerous additive. [2] For this reason it is essential to use multiple different tests to show all adulterants.

  3. 2-Aminophenol - Wikipedia

    en.wikipedia.org/wiki/2-Aminophenol

    2-Aminophenol has a variety of uses. As a reducing agent, it is marketed under the names of Atomal and Ortol to develop black-and-white photographs. [3] 2-Aminophenol is an intermediate in the synthesis of dyes. It is particularly useful in yielding metal-complex dyes when diazotized and coupled to a phenol, naphthol, or other aromatic or ...

  4. 2-Aminothiophenol - Wikipedia

    en.wikipedia.org/wiki/2-Aminothiophenol

    2-Aminothiophenol is an organosulfur compound with the formula C 6 H 4 (SH)(NH 2). It is a colorless oily solid, although impure samples can be deeply colored. It is soluble in organic solvents and in basic water. 2-Aminothiophenol is a precursor to benzothiazoles, some of which are bioactive or are commercial dyes.

  5. Reagent testing - Wikipedia

    en.wikipedia.org/wiki/Reagent_testing

    Reagent testing is one of the processes used to identify substances contained within a pill, usually illicit substances. With the increased prevalence of drugs being available in their pure forms, the terms "drug checking" or "pill testing" [1] may also be used, although these terms usually refer to testing with a wider variety of techniques covered by drug checking.

  6. Benzimidazole - Wikipedia

    en.wikipedia.org/wiki/Benzimidazole

    Benzimidazole is a base: C 6 H 4 N(NH)CH + H + → [C 6 H 4 (NH) 2 CH] + It can also be deprotonated with stronger bases: C 6 H 4 N(NH)CH + LiH → Li [C 6 H 4 N 2 CH] + H 2. The imine can be alkylated and also serves as a ligand in coordination chemistry. The most prominent benzimidazole complex features N-ribosyl-dimethylbenzimidazole, as ...

  7. Category:2-Aminophenyl compounds - Wikipedia

    en.wikipedia.org/wiki/Category:2-Aminophenyl...

    Pages in category "2-Aminophenyl compounds" The following 7 pages are in this category, out of 7 total. This list may not reflect recent changes. 0–9. 2′-NH2-MPTP; A.

  8. Marquis reagent - Wikipedia

    en.wikipedia.org/wiki/Marquis_reagent

    The above photo shows the positive results of the number 2 Marquis reagent presumptive drug test when used with a sample of opium. It is the primary presumptive test used in Ecstasy reagent testing kits. It can also be used to test for such substances as opiates (e.g. codeine, heroin), and phenethylamines (e.g. 2C-B, mescaline).

  9. Etonitazene - Wikipedia

    en.wikipedia.org/wiki/Etonitazene

    Etonitazene, also known as EA-4941 or CS-4640, [2] is a benzimidazole opioid, first reported in 1957, [3] that has been shown to have approximately 1,000 to 1,500 times the potency of morphine in animals.