http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110372610-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D239-553 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D239-553 |
| filingDate | 2019-08-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-05-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-05-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110372610-B |
| titleOfInvention | A kind of composition of 5-fluorouracil and its purification method |
| abstract | The invention discloses a method for purifying 5-fluorouracil, comprising the following steps: dissolving 5-fluorouracil in an organic solvent, preferably DMSO, heating and stirring until dissolved; naturally cooling the filtrate until crystals are precipitated; filtering, and washing the filter cake with a polar solvent And the process of drying under reduced pressure. By adopting this novel refining method, the content of impurities in 5-fluorouracil can be reduced to below 0.01%, the product purity is above 99.98%, and the refining yield is higher than 70%. In addition, the refining method of the present invention has the advantages of simple process, convenient operation, low production cost, high product purity, stable process and suitability for industrial production. |
| priorityDate | 2019-08-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 44.