![]() JVBXVOWTABLYPX-UHFFFAOYSA-L Sodium dithionite Chemical compound.239000002904 solvent Substances 0.000 claims description 8.239000012535 impurity Substances 0.000 claims description 9.238000004128 high performance liquid chromatography Methods 0.000 claims description 11.239000007800 oxidant agent Substances 0.000 claims description 13.LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 16.239000012429 reaction media Substances 0.000 claims description 18.230000001590 oxidative Effects 0.000 claims abstract description 5.238000000746 purification Methods 0.000 claims abstract description 8.230000001603 reducing Effects 0.000 claims abstract description 15.235000000177 Indigofera tinctoria Nutrition 0.000 claims abstract description 20.241001062009 Indigofera Species 0.000 claims abstract description 20.229940097275 Indigo Drugs 0.000 claims abstract description 20.LSNNMFCWUKXFEE-UHFFFAOYSA-L Sulphite Chemical compound S()=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 claims abstract description 32.QXNVGIXVLWOKEQ-UHFFFAOYSA-N disodium Chemical compound QXNVGIXVLWOKEQ-UHFFFAOYSA-N 0.000 claims abstract description 37.239000000203 mixture Substances 0.000 claims abstract description 62.238000002360 preparation method Methods 0.000 title description 7.KHLVKKOJDHCJMG-QDBORUFSSA-L disodium (2E)-3-oxo-2-(3-oxo-5-sulfonato-1H-indol-2-ylidene)-1H-indole-5-sulfonate Chemical compound.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority claimed from FR1661784 external-priority Application filed by Provepharm Life Solutions filed Critical Provepharm Life Solutions Publication of CN110023414A publication Critical patent/CN110023414A/en Application granted granted Critical Publication of CN110023414B publication Critical patent/CN110023414B/en Status Active legal-status Critical Current Anticipated expiration legal-status Critical Links Original Assignee Provepharm Life Solutions Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) 洛佩 Current Assignee (The listed assignees may be inaccurate.Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Active Application number CN201780074084.5A Other languages Chinese ( zh) Google Patents Process for the preparation of indigo carmineĭownload PDF Info Publication number CN110023414B CN110023414B CN201780074084.5A CN201780074084A CN110023414B CN 110023414 B CN110023414 B CN 110023414B CN 201780074084 A CN201780074084 A CN 201780074084A CN 110023414 B CN110023414 B CN 110023414B Authority CN China Prior art keywords indigo sulfonic acid disodium leuco sulfonate Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents CN110023414B - Process for the preparation of indigo carmine CN110023414B - Process for the preparation of indigo carmine
0 Comments
Leave a Reply. |