LITTLE KNOWN FACTS ABOUT 4F-MAR.

Also, it is made up of a methyl acetate sure to Rβ or its construction. 4F-MPH is structurally just like methylphenidate except an individual fluorine atom bound to the 4 placement within the phenethylamine Main.My fear using this 4-Cl substitution could it be's similarities to amphetamine counterparts. I have no education and learning is SAR so I