Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pfizer Inc
Original Assignee
Charles Pfizer and Co Inc
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 as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Charles Pfizer and Co IncfiledCriticalCharles Pfizer and Co Inc
Priority to ES227164ApriorityCriticalpatent/ES227164A1/en
Publication of ES227164A1publicationCriticalpatent/ES227164A1/en
A process for the purification of a basic antibiotic, characterized by contacting an impure aqueous solution of the antibiotic with a ion exchange resin of carboxylic acid of limited and at least partially neutralized porosity, eluting the antibiotic from the resin with a dilute acid and then contacting the aluate of said resin, either with a at least partially neutralized and high porosity carboxylic acid ion exchange resin, or with a resin, ion exchanger, of sulfonic acid. (Machine-translation by Google Translate, not legally binding)
ES227164A1956-03-071956-03-07A procedure for the purification of a basic antibiotic. (Machine-translation by Google Translate, not legally binding)
ExpiredES227164A1
(en)
A procedure for purification of the aqueous extracts of the algarroba for the obtaining of its sugars (Machine-translation by Google Translate, not legally binding)
Procedure for the preparation of 2-amino-d-glucose salts with organic and inorganic acids (Machine-translation by Google Translate, not legally binding)