http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4588818-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c999fee6428152a996011d506925c2d7 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D209-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D209-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12P13-22 |
| filingDate | 1984-11-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1986-05-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_519f0429b48d0531d1dd71e81380ed8d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_876d93dc3d5e76592de1da2abe48c24f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d3eeab06ccc03941b1763e3196151a9e |
| publicationDate | 1986-05-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4588818-A |
| titleOfInvention | Method for recovery of optically active tryptophane |
| abstract | A method for recovery of optically active tryptophane, which comprises filtering a solution of optically active tryptophane containing impurities through a semi-permeable membrane; adding a lower alcohol or a ketone to the filtrate; maintaining the solution containing the lower alcohol or ketone at an alkaline pH and a temperature higher than the α/β crystalline transition point; adding acid to the solution, thereby causing crystals of optically active tryptophane to form in the solution; and separating the crystals from the solution containing impurities, is disclosed. This method avoids the use of resins in the purification steps. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5329014-A |
| priorityDate | 1983-11-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 26.