| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b3d0fdb5e8ddc96074ea4d95b1fb4588 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2603-24 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P43-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P19-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P19-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K36-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K36-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K36-896
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-19
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P43-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-22 |
| filingDate |
1996-02-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_898c0b0ef72166da445b264355ea2242 |
| publicationDate |
1996-08-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2187210-A1 |
| titleOfInvention |
Method for purifying diacetylrhein |
| abstract |
A method comprising the steps of (a) forming a suspension of diacetylrhein in a mixture of an organic solvent and water; (b) and a tertiary amine; (c) adding an alkali metal or alkaline-earth metal acid salt to the resulting solution; (d) performing hydrolysis in a weakly acidic medium; and (e) recovering the purified diacetylrhein by filtration. |
| priorityDate |
1995-02-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |