i read on theehive in reddit that it was arround 1000USD/Kg (2 years ago) from china "if you have connection".
i just ask for price out of curious a bunch of random emails from lookchem and chemicalbook (just random, not trusted...) and get arround 250gr/700usd - 1kg/1700USD... (at 95% aprox...
(First of all, I am a total noob. The biggest recipe I've ever made is to make myself dinner)
you can find it by searching "Method for making phenylethylamine compounds EP2540698B1"
Example 1 Dextroamphetamine (not according to the invention)
[0028]...