Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Patent
1998-03-18
1999-12-14
Shah, Mukund J.
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
514269, 544298, 544335, A01N 4354, C07D23902
Patent
active
060018380
ABSTRACT:
A process for the separation and purification of pyrimidine derivatives, such as tetrahydropyrimidines, in particular 1,4,5,6-tetrahydro-2-methyl-4-pyrimidinecarboxylic acids (ectoine) from aqueous solutions by a combination of adsorption using inorganic solids and crossflow filtration.
Preuss Andrea
Stockhammer Stefan
Treffenfeldt Wiltrud
Degussa-Huls AG
Shah Mukund J.
Truong Tamthom N.
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