Author Topic: Norephedrine extraction  (Read 1350 times)

0 Members and 1 Guest are viewing this topic.

comus

  • Guest
Norephedrine extraction
« on: March 17, 2003, 06:39:00 AM »
I haven't had a Merk Index for over a week so I am here asking, what solvents are needed to separate norephedrine HCl from yohimbine HCl and caffeine?

Rhodium

  • Guest
I don't think a solvent extraction will be...
« Reply #1 on: March 18, 2003, 12:59:00 AM »
I don't think a solvent extraction will be enough for that, if the norephedrine is present to a much greater extent than the other ingredients, maybe repeated recrystallizations will help.