| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_696ca0ae93d5cf5a686273601361781f |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P17-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-4745
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P25-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D471-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P3-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P27-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P43-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P37-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P35-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P1-16 |
| filingDate |
2010-12-27^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e36f79ac7512cb98b34d1d850dca0d56 |
| publicationDate |
2012-07-19^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2012136465-A |
| titleOfInvention |
Pyrroloquinoline quinone potassium salt |
| abstract |
[Problem] To provide a pyrroloquinoline quinone (PQQ) potassium salt having high crystallinity by a method capable of recrystallization with a small amount of waste liquid. SOLUTION: 5 ml of PQQ disodium salt was added to ion-exchanged water, and 300 ml of a solution having a pH of 6.7 was prepared by adding an aqueous sodium hydroxide solution. 80 g of potassium chloride was added here. At this time, a red solid precipitated. Stir at room temperature for 16 hours. The crystals were collected by suction filtration and dried under reduced pressure for 16 hours at room temperature. As a result, a method for producing crystals of PQQ tripotassium salt with a yield of 95 mol%. [Selection figure] None |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102942567-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102942567-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2015189711-A |
| priorityDate |
2010-12-27^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |