So I used to do a lot of meth and knew where my shit was being made and who was moving it around the state and all that back when I was dealing. But that was 7 years ago... Did some more research and I found this fun bit of information. We all know cartel dope is p2p dope, which would leave you with D-Meth and L-Meth isomers. But then I found this posted in may 2022: It appears there has been over the past 5yrs a shift in the way p2p is produced to the nitrostyrene method. Producing two impurities unique to the nitrostyrene route, N-butylamphetamine and N-cyclohexylamphetamine.

“Methamphetamine profiling data is then presented to show that nitrostyrene related profiles have been dominant in the United States for the last 3 years.” (As of 2019.) n-butylamphetamine was the weakest of all the substituted Amphetamines tested. Of the bunch it was the only one that didn’t increase the rate of the guinea pig atria and wasn’t very reinforcing.