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.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
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 American Cyanamid CofiledCriticalAmerican Cyanamid Co
Publication of ES234658A1publicationCriticalpatent/ES234658A1/en
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
A method of improved therapeutic acceptance of neutral tetrecycline characterized by adjusting the ph of an aqueous solution or slurry of tetracycline containing material to no more than 2.0, addition of one or more alkali metal sulphites and/or ammonium sulfite, of ph between about 2.0 to 3.0 and recovery of the resulting precipitated neutral tetracycline. (Machine-translation by Google Translate, not legally binding)
ES0234658A1956-04-041957-04-03A neutral retracycline preparation procedure (Machine-translation by Google Translate, not legally binding)
ExpiredES234658A1
(en)
Process for the preparation of a member of the group consisting of a salt of furaltadone acid pamoate and a hydrate of the same (Machine-translation by Google Translate, not legally binding)
Procedure for the obtaining of d, 1-0 1-isopropil-aminomethyl- (3, 4-dioxypenyl) -carbinol (Machine-translation by Google Translate, not legally binding)