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Thank you very much for the answers, another question about the alcoholic solution of d-tartaric acid, d tartaric acid with ethanol (96%) in what proportion to interfere? until the tartaric acid dissolves?

Hello, since there is no dextroamphetamine on the market and I need it, there is a need to make it for myself on my own, I am a beginner, so I have some questions, as I understand it first with the use of tartaric acid with methanol - L amphetamine falls into the precipitate and then you need to...