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Methamphetamine was discovered in 1893 and exists as two enantiomers: levo-methamphetamine and dextro-methamphetamine. [ note 2 ] Methamphetamine properly refers to a specific chemical substance, the racemic free base , which is an equal mixture of levomethamphetamine and dextromethamphetamine in their pure amine forms, but the hydrochloride ...
In 1893, methamphetamine was first synthesised from ephedrine by Nagayoshi Nagai [3] and in 1919, Akira Ogata was the first to synthesise methamphetamine in a crystallized form. Ogata blended the red phosphorus and ephedrine, which is derived from an Asian herbal plant, to produce an amphetamine that could be dissolved in water. [ 4 ]
Such methamphetamine labs are sometimes discovered when emergency personnel respond to fires due to improper handling of volatile or flammable materials. [118] [119] Single-pot "shake and bake" syntheses are particularly prone to explode and ignite, and, when abandoned, still pose a severe hazard to firefighters. [119]
The FBI, with help from the Honolulu Police Department, investigated the drug smuggling operation and discovered that Ascencio tried on Feb. 12, 2020, to smuggle meth into OCCC.
The latest haul was discovered in the spare wheel compartment of a passenger bus during a ... The statement also reported the discovery of four tons of methamphetamine during a raid on a house in ...
South African police have uncovered an industrial scale meth manufacturing lab in one of the country's biggest ever drug busts and arrested four suspects including two Mexicans, they said on Saturday.
Synthesis of methamphetamine from ephedrine in 1893. Methamphetamine was later synthesized in crystalline form in 1919 by Akira Ogata. Isolation of rotenone from Derris elliptica in 1902. Nagayoshi named the substance after the Japanese name for the plant, roten. Synthesis and structural elucidation of ephedrine in 1929.
The following is a table of drugs organized by their year of discovery. Naturally occurring chemicals in plants, including alkaloids, have been used since pre-history.In the modern era, plant-based drugs have been isolated, purified and synthesised anew.