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  1. Z

    Biggest mmc problem! Blue product

    If the contaminant is a condensation product of amino ketone and 4-methylpropiophenone, then these are heterocyclic compounds of pyrazine (they are not ketones). The amino ketone can be purified using a bisulfite adduct, provided that there is no other ketone in the mixture, i.e...
  2. Z

    Is there anyone from Poland here?

    Hi
  3. Z

    Amphetamine tartrate as a finished product?

    tartrate is ok, but the sour taste seems to bother others
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