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
Method and apparatus for controlling a multi-node process
Method and apparatus for networked modems
Bandpass filter and radio communication module and radio communication device using the same
Apparatus and method for encoding/decoding signal
Memory management configuration
Spectral sensor for checking documents of value
Label with surface ornamentation
  Randomly Featured Patents
Illuminance sensor setting device
Barbecue skewer handle
Ground fault defeat cable for high current static trip circuit breaker test sets
Thioether substituted imidazoquinolines
Energy converter and method of making the same
Materials and methods for applying a treatment to animals
Method and apparatus for converting an analog signal to a digital signal using an oversampling technique
Intelligent transfer of multimedia data files from an editing system to a playback device
Chemical vapor deposition reactor
Method for feedback and method for configuring a codebook in multi-antenna system