4F-MPH is a synthetic molecule of the substituted phenethylamine and substituted phenidate classes, and a fluorinated analog of methylphenidate. It contains a phenethylamine core featuring a phenyl ring bound to an amino -NH2 group through an ethyl chain. It is structurally similar to amphetamine, featuring a substitution at Rα which is incorporated into a piperidine ring ending at the terminal amine of the phenethylamine chain. Additionally, it contains a methyl acetate bound to Rβ or its structure. 4F-MPH is structurally identical to methylphenidate with the exception of a single fluorine atom bound to the four position on the phenethylamine core.
With respect to nomenclature, the methyl- in methylphenidate regards the side chain of one carbon atom, while phen- indicates the phenyl ring. Id- is contracted from a piperidine ring, and -ate indicates the acetate group containing the oxygen atoms. Like its parent molecule, 4F-MPH is a chiral compound, presumably produced as a racemic mixture.
Of note is the scientific finding that amphetamine analogs containing fluorine, chlorine, bromine and methyl groups are typically stronger than those without.
4F-MPH is thought to act primarily as a dopamine and norepinephrine reuptake inhibitor, meaning it effectively boosts the levels of dopamine and norepinephrine neurotransmitters in the brain by binding to and partially blocking the transporter proteins that normally clear these catecholamines from the synaptic cleft. This allows dopamine and norepinephrine to accumulate within the reward pathways in the brain, resulting in stimulating and euphoric effects.
According to a recent study, 4-FMPH is about as effective as methylphenidate as a norepinephrine reuptake inhibitor (NRI), but is approximately three times as effective at inhibiting the reuptake of dopamine as its parent compound.
4F-MPH. HCL. POWDER is for research use – Not for human or veterinary diagnostic or therapeutic use. It is the responsibility of the purchaser to determine suitability for other applications.
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