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What is Threo-4-Methylmethylphenidate (4-MeTMP)?

Threo-4-methylmethylphenidate (4-MeTMP) is an orally active stimulant of the amphetamine class. It has been listed by the DEA as a Schedule III controlled substance (lock up your pills!). 4-MeTMP (4-methylmethyl-THB) and is synthesized as the hydrochloride salt by the precursor trans-diene cyclase.