http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2020083798-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d24321bed2edef57b40e064ce34f0a6e |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D493-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 |
| filingDate | 2018-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5df6aa733267783043b6019bdb8bc066 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b90b46b24217eaac8f0d613b06609450 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ee218c86d3957eb7fc98701a29b33ad8 |
| publicationDate | 2020-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2020083798-A |
| titleOfInvention | High-purity fluorescein compound and method for producing the same |
| abstract | PROBLEM TO BE SOLVED: To provide a high-purity fluorescein compound and a method for producing a high-purity fluorescein compound which is efficient and highly safe on an industrial scale. SOLUTION: A compound having a phenolic hydroxyl group and an acid anhydride compound are reacted in the presence of an acidic catalyst using a solvent containing a carboxylic acid as a reaction solvent, and a chemical purity represented by the following formula (1) is 95. % Or more of high purity fluorescein compound is obtained. (In the formula (1), x, y, and z each represent an integer of 0 to 4, and R 1 , R 2 , and R 3 are each independently a condensed benzene ring having a substituent or an unsubstituted condensed ring. It is a benzene ring.) [Selection diagram] None |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115197237-A |
| priorityDate | 2018-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 292.