http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104945357-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-58 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-58 |
| filingDate | 2015-06-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-01-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2018-01-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104945357-B |
| titleOfInvention | A kind of process for purification of dehydroandrographolide succinate |
| abstract | A kind of process for purification of dehydroandrographolide succinate, its process for purification is, the dehydroandrographolide succinate crude product that andrographolide and succinic anhydride are reacted to obtain, after dehydroandrographolide succinate crude product is dissolved in hydrophobic solvent, is washed with aqueous acid, then anhydrous sodium sulfate drying is used, filtering, takes filtrate, solvent is recovered under reduced pressure, vacuum drying, obtains dehydroandrographolide succinate highly finished product.Advantage and effect：Crystallization need not be solidified in subtractive process, avoid the problem of crystal sticky caking parcel impurity, the pyridine in crystal and impurity are not easy washes clean, the application is the purification process under solution state, the pyridine in crude product and impurity can be made to obtain fully washing and remove, so as to ensure that the high-purity of product and steady quality. |
| priorityDate | 2015-06-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 40.