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4-Fluoromethylphenidate (also known as 4-FMPH and 4F-MPH) is a stimulant drug that acts as a higher potency dopamine reuptake inhibitor than the closely related methylphenidate, 4F-MPH is structurally similar to amphetamine and was studied k2/spice chemical formula further along with other analogues to assess their potential as copyright addiction medications.You can fine other research chemical and Chems Well.