http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106632334-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D473-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D473-14 |
| filingDate | 2016-12-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-106632334-B |
| titleOfInvention | The preparation method of 1,3,7,9- tetramethyluric acid |
| abstract | The present invention relates to a kind of preparation method of 1,3,7,9-tetramethyluric acid, include the following steps: to take herb mixtures tea extract as sample to be separated；The adverse current chromatogram map for using ethyl acetate, n-butanol and water as dicyandiamide solution, carrying out elution separation to sample to be separated using high speed adverse current chromatogram, and being obtained according to recorder determines whether contain 1 in fraction, 3,7,9- tetramethyluric acids, and it collects and contains 1, the fraction of 3,7,9- tetramethyluric acids, it is dried to obtain 1,3,7,9- tetramethyluric acids.The purity is high of 1,3,7,9-tetramethyluric acid made from the preparation method, yield are high, and single preparation amount is big, and on sample activity without influence, also without additional pollution.The 1,3,7,9-tetramethyluric acid being prepared can be used for drug, cosmetics, health care product etc.. |
| priorityDate | 2016-12-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 26.