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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).
The hydrochloride salt is the most common form, normally found as a white powder, [1] [unreliable source?] or white crystals. [ 2 ] Alexander Shulgin 's 2C-P crude freebase (soluble in chloroform), after "removal of the solvent under vacuum," was an off-white colored oil which he distilled at 100–110 °C at 40 Pa (0.3 mmHg) (turning it "water ...
It is generally used to differentiate between and identify white blood cells, malaria parasites, and trypanosomas. It is based on a methanolic mixture of "polychromed" methylene blue (i.e. demethylated into various azures) and eosin. The methanolic stock solution is stable and also serves the purpose of directly fixing the smear eliminating a ...
Here's an easy to understand tour of the complex process of pharmacology.
The hydrochloride salt exists as a very fine crystalline powder; it is hygroscopic and thus tends to form clumps, resembling something like powdered sugar. Its color can range from pure white to a yellowish-tan and has a slight odor that strengthens as it colors.
A drug test (also often toxicology screen or tox screen) is a technical analysis of a biological specimen, for example urine, hair, blood, breath, sweat, or oral fluid/saliva—to determine the presence or absence of specified parent drugs or their metabolites.
Talc is an excipient often used in pharmaceutical tablets that may end up being crushed to a powder against medical advice or for recreational use. Also, illicit drugs that occur as white powder in their pure form are often cut with cheap talc. Natural talc is cheap but contains asbestos while asbestos-free talc is more expensive. Inhaled talc ...
Gray death is a slang term which refers to potent mixtures of synthetic opioids, for example benzimidazole opioids or fentanyl analogues, which were often sold on the street misleadingly as "heroin".