Resources Contact Us Home
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
Compounds for nonsense suppression and methods for their use
Anti-infective agents and uses thereof
Mounting structure, electro-optical apparatus, and touch panel
System, apparatus and method for enabling/disabling display data channel access to enable/disable high-bandwidth digital content protection
System and method for detecting an earth ground fault of an external power supply connected to a vehicle
Organic light emitting diode display device and method of fabricating the same
  Randomly Featured Patents
Arrangement for positioning and holding a filter bag in a vacuum cleaner
Sectional plate assembly for a wall port incorporating a reversible slide hood for wire management
Container for potato chips
Shielded connector assembly and method of manufacturing
Waste transport arrangement
Wall hook for a shower attachment
High-frequency heating device
Electric light
High efficiency power amplifying apparatus
Dual sensitivity optical sensor