http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3632647-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4629bd6f07bc58aa772a1f6fe6ba784b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C233-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C233-00 |
| filingDate | 1968-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1972-01-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_40737136e0d62303ed992a34310f5eb8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_24ddbdd5cd36163a181c6ae66ab50f4e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_40d3e5fdd5e8568ee446dd31e8da24dd |
| publicationDate | 1972-01-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-3632647-A |
| titleOfInvention | Processes for preparing and/or purifying chlortetracycline hydrochloride and chlortetracycline neutral base |
| abstract | CHLORTETRACYCLINE HYDROCHLORIDE AND CHLORTETRACYCLINE NEUTRAL BASE ARE PREPARED AND/OR PURIFIED BY (1) DISSOLVING CHLORTETRACYCLINE HYDROCHLORIDE IN AN AQUEOUS UREA, THIOUREA OR WATER SOLUBLE ALKYL UREA SOLUTION OR (2) BY DISSOLVING CHLORTETRACYCLINE NEUTRAL BASE IN AN AQUEOUS SOLUTION OF UREA, THIOUREA OR WATER SOLBLE ALKYL UREA AND HYDROCHLORIC ACID TO OBTAIN AN AQUEOUS CHLORTETRACYCLINE HYDROCHLORIDE-UREA, THIOUREA OR WATER SOLUBLE ALKYL UREA SOLUTION WHICH CAN THEN BE CLARIFIED TO REMOVE COLOR OR ANY INSOLUBLE IMPURITIES. THE AQUEOUS SOLUTION IS THEN TREATED (A) WITH HYDROCHLORIC ACID AND SODIUM CHLORIDE TO PRECIPITATE CHLORTETRACYCLINE HYDROCHLORIDE OR (B) WITH A WATER SOLUBLE BASIC MATERIAL TO PRECIPITATE CHLORTETRACYCLINE NEUTRAL BASE OR (C) WATER CAN BE VOLTILIZED FROM THE SOLUTION TO OBTAIN A WATER SOLUBLE SOLID CHLORTETRACYCLINE HYDROCHLORIDE COMPOSITION. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114195669-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114195669-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110507616-A |
| priorityDate | 1968-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 45.