pure dipipanone, could possibly be obtained by a backstreet chemist from methadone- dont know if this could be done. or from Amdipharm if an employee finds a way of getting away with it- not chemists, as this med is so rare now they would not have access to compounding powders.
at one time, 2g dipipanone could be found with 25g diamorphine tubs and coke crystal "diamonds", palfium amps and suppositories, and IV barbiturates in the DDA box... shame