The difference between 4-FEA vs 4-FMA 4-FEA (4-Fluoroethamphetamine) and 4-FMA (4-Fluoromethamphetamine) are both synthetic substances belonging to the amphetamine class, but they have distinct differences. Here are some key distinctions between 4-FEA and 4-FMA: Chemical Structure: 4-FEA: Contains a fluorine atom on the ethyl side chain. 4-FMA: Contains a fluorine atom on the methyl side […]
