Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Sulfate of 5,6,7,8-tetrahydro-L-erythro-biopterin and process for preparing the same










Image Number 3 for United States Patent #4649197.

A sulfate of tetrahydrobiopterin having the formula (I): ##STR1## and a process for preparing the same, which comprises crystallizing tetrahydrobiopterin from an aqueous medium containing sulfuric acid. The sulfate of the (6R)-form of (1) has a high crystallinity and the process easily gives a sulfate of the (6R)-form








 
 
  Recently Added Patents
Polynucleotide capture materials, and methods of using same
Single well reservoir characterization apparatus and methods
System and method for testing an integrated circuit embedded in a system on a chip
Wire guide
Packet transmission method, apparatus, and network system
Method and device for authenticating transmitted user data
Security authentication method, apparatus, and system
  Randomly Featured Patents
Retractable bristle brush
Power supply for providing high voltage power from a low voltage source
Image recognition game apparatus
Battery holder
Light amount adjusting device, and photographing apparatus and method
Radio communication system, base station control equipment, radio terminal, and radio communication method
System and method for ballizing and measuring a workpiece bore hole
Method of forming a packaged chip multiprocessor
Sound reproducing apparatus using in-ear earphone
System for managing a large number of reusable and returnable containers and code especially useful for this purpose