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The bridged bicyclic norbornane, formally bicyclo[2.2.1]heptane The spirocyclic compound spiro[5.5]undecane DABCO (1,4-diazabicyclo[2.2.2]octane) is often incorrectly depicted with one skewed ethylene group for the sake of clarity.
Chiral separation is needed to assess the possible contribution of levomethamphetamine, which is an active ingredients in some OTC nasal decongestants, [note 4] toward a positive test result. [170] [171] [172] Dietary zinc supplements can mask the presence of methamphetamine and other drugs in urine. [173]
Jared Corey Kushner (born January 10, 1981) is an American businessman, investor, and former government official. He is the son-in-law of the 45th and 47th U.S. president Donald Trump through his marriage to Ivanka Trump, and served as a senior advisor in his father-in-law's first administration from 2017 to 2021.