http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102816084-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5a90697398801da00e601433de7ba610 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C231-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C237-26 |
| filingDate | 2012-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-02-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e913a9f9a0f3d04762ed11b34cf8ae40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fdf3fc09b98eccc301d1dc12c67e34e6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a567b9ba6ac13829bb2ab0979fecab5d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_22ea54af50b1a1b8aeb583bba9711fca http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_da69b5cf50cf3ef0d6f3f6c758b14626 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fe5df122f7a351f8df50952360798f03 |
| publicationDate | 2015-02-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102816084-B |
| titleOfInvention | Method for preparing injection-grade oxytetracycline |
| abstract | The invention discloses a method for preparing an injection-grade oxytetracycline, which mainly comprises the following steps: directly dissolving the active pharmaceutical ingredient oral-grade oxytetracycline, and decolorizing with activated carbon to remove impurities; and converting oxytetracycline salt into oxytetracycline alkali without adding any flocculant, carrying out vacuum drying and the like. The technical process disclosed by the invention is simple and convenient to operate, and achieves the standard for injection-grade oxytetracycline; and the yield is enhanced by more than 5% as compared with the traditional technique. |
| priorityDate | 2012-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 37.