6-fluoro-amt 6-fluoro-amt 6-fluoro-α-methyltryptamine (6-fluoro-amt, 6f-amt) is a tryptamine derivative related to compounds such as alpha-methyltryptamine and 5-meo-amt, which has been sold as a designer drug. animal tests showed it to be somewhat less active than amt or 5-fluoro-amt, but it was nevertheless allegedly manufactured and sold from the laboratory operated by leonard pickard and gordon todd skinner, who described 6-fluoro-amt as "a beast". 6-fluoro-amtidentifiers iupac name 1-(6-fluoro-1h-indol-3-yl)propan-2-amine cas number712-11-8 ypubchem cid15289992chemspider14228507chemical and physical dataformulac11h13fn2molar mass192.237 g·mol−13d model (jsmol)interactive image smiles nc(c)cc1=cnc2=cc(f)=cc=c21 inchi inchi=1s/c11h13fn2/c1-7(13)4-8-6-14-11-5-9(12)2-3-10(8)11/h2-3,5-7,14h,4,13h2,1h3key:xyjywuuxcujxai-uhfffaoysa-n in interviews, skinner stated that he first began to experiment with 6-fluoro-amt in the early 1980s by giving it to high school friends. their experiences made him cautious about the appropriate dosage amounts, which he says ranges from 25mg to 75mg . skinner said that it is a long-lasting psychedelic with significantly more time distortion, and felt the drug was enhanced by combining it with ald-52.