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4-FA (also known as 4-Fluoroamphetamine; 4-FMP; PAL-303; “Flux”) is a psychoactive research chemical and designer drug of the phenethylamine and substituted amphetamine chemical classes. 4-FA is part of a series of fluorinated amphetamine analog that initially included such compounds as 2-FA, 2-FMA, and 3-FA.


BUY 4-FA ONLINE, 4-Fluoroamphetamine 4-FA is a substituted amphetamine with stimulant, entactogenic and nootropic effects. It is described subjectively as being between amphetamine and MDMA. It is rarely found on the streets but commonly sold as a grey area research chemical through online vendors along with related compounds such as 2- fluoroamphetamine and 4-fluoromethamphetamine 4-Fluoroamphetamine (4-FA) is a synthetic molecule of the amphetamine family. Molecules of the amphetamine class contain a phenethylamine core featuring a phenyl ring bound to an amino (NH2) group through an ethyl chain with an additional methyl substitution at Ra. Amphetamines are alpha-methylated phenethylamines. 4-fluoroamphetamine contains a flou rine atom at R4 of its phenyl ring and is a fluorinated analogue of amphetamine 4-Fluoroamphetamine acts as a releasing agent and reuptake inhibitor of dopamine, serotonin, and norepinephrine, producing stimulating amphetamine-like effects at lower doses and euphoric, entactogenic effects similar to MDMA at dosages above 100mg. The mechanism of action of 4-FA effectively boosts the levels of the norepinephrine, dopamine, and serotonin neurotransmitters in higher doses in the brain by binding to and partially blocking the transporter proteins that normally remove those monoamines from the synaptic cleft This allows dopamine, norepinephrine and serotonin to accumulate within the brain, resulting in stimulating, euphoric and entactogenic effects. Studies demonstrate that 4-flourine amphetamine substitutions limit activity of the compound at the alpha-1 adrenergic receptor with an over 200-fold increased selectivity for A2 receptors over Al receptors.


4-FA has formal name: (RS)-1-(4-Fluorophenyl)propan-2-amine. The chemical formula for 4-FA is C9H12FN with a molecular weight of 153.20. Buy 4-FA Online


The effect of 4-FA is most similar to that of amphetamine (speed): mood-enhancing and performance-enhancing. In addition, during consumption of 4-FA, serotonin release also occurs, which adds an emotional (ecstasy-like) component to the effect.


The toxicity and long-term health effects of recreational 4-FA use do not seem to have been studied in any scientific context and the exact toxic dosage is unknown.


In our store you can buy online pure 4-FA in bulk, with free shipping and delivery guarantee. Here at you can buy Research Chemicals in crystal, powder and liquid form.

  • CAS: 459-02-9
  • Formula: C9H12FN
  • Purity: 99,7% min
  • Molecular weight: 153.20
  • Appearance:: Powder

4-FA is intended for research and forensic purposes in a controlled laboratory for study only and is NOT intended for human consumption.Buy 4-FA Online Wholesale

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50 GRAMS, 100 GRAMS, 500 GRAMS, 1 KG


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