4-FA
4-FA 4-Fluoroamphetamine, also known as 4-FA, is a halogen substituted analogue of amphetamine (also known by its street name, speed). 4-FA is a potent stimulant, but not quite so much so as its close cousin, amphetamine. The only difference between 4-FA and amphetamine is that 4-FA has a fluorine atom substituted for a hydrogen at [...]
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