| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bb7fbf54c3d9b4e61ae03a9cc994a691 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K8-49
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K8-4946
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D235-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61Q17-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F1-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D235-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61Q17-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K8-49 |
| filingDate |
2001-11-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2004-05-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0e8e4a70e327aa8cb73c477700efe2d4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_69d7dd31f06ec58d54a88c95a7f83018
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_00263a7024601b85a0172ec28572776e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8a7b95cc203adaaf32459c85759da3f5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_904a07cc547671338dbe83f2f7372c21 |
| publicationDate |
2004-05-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-6730795-B2 |
| titleOfInvention |
Process for the preparation of phenylene-bis-benzimidazole-tetrasulfonic acid disodium salt |
| abstract |
Phenylene-bis-benzimidazole-tetrasulfonic acid disodium salt which is largely free from impurities can be prepared by reacting o-phenylenediamine with terephthalic acid and chlorosulfonic acid in the presence of strong acids with a reaction time of 10 to 15 hours. |
| priorityDate |
2000-11-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |