d-methamphetamine

D-tartaric acid, and importantly Cas (147-71-7), will preferentially precipitate D-Meth crystals. 13 g of D-tartaric acid was dissolved in 52 ml of methanol, then poured into 20 g of DL-methanol oil and stirred for 6 hours to generate diastereomers (D acid-D base salt)Crystals, (D acid-L base...

I was wondering if Dextromethamphetamine could be made from Dextroamphetamine or if it would be racemic. The idea is to turn around 5% to 10% of the Dextroamphetamine into Dextromethamphetamine by adding 10% Formic acid slight excess maybe 11% and Formaldehyde 10% to Dextroamphetamine to get...

Introduction In this article, a detailed description of d-methamphetamine hydrochloride synthesis via tartaric acid was represented. This isomer separation approach is the easiest and most popular among clandestine chemists. It's reasoned by cheap and affordable d,l-Tartaric acid (CAS 133-37-9)...

Hello, After receive and see many questions about Meth resolution process I decided to show you an example with my own pics(not professional ones as you will see hahaha): - 3.65L of "dirty" freebase(just separated and dried after hydrolysis process) - 5.11L of water - 2.55kg of L-tartaric...

https://bbgate.com/threads/methamphetamine-isomers-separation-by-tartaric-acid.9690/ Methamphetamine Isomers Separation by Tartaric Acid

Introduction At the moment, there are many ways to synthesize dextroamphetamine. They can be divided into 3 types: biosynthesis (using biomass), direct synthesis, and synthesis of racemic (the sum of l- and d-isomers) amphetamine followed by separation of optical isomers. In our case, a...