GB675085A - Process for producing dextran products for pharmaceutical and therapeutical preparations - Google Patents

Process for producing dextran products for pharmaceutical and therapeutical preparations

Info

Publication number
GB675085A
GB675085A GB12649/51A GB1264951A GB675085A GB 675085 A GB675085 A GB 675085A GB 12649/51 A GB12649/51 A GB 12649/51A GB 1264951 A GB1264951 A GB 1264951A GB 675085 A GB675085 A GB 675085A
Authority
GB
United Kingdom
Prior art keywords
pharmaceutical
dextran
products
aqueous solution
water
Prior art date
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.)
Expired
Application number
GB12649/51A
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 Health AB
Original Assignee
Pharmacia AB
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 Pharmacia AB filed Critical Pharmacia AB
Publication of GB675085A publication Critical patent/GB675085A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
    • C08B37/0009—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid alpha-D-Glucans, e.g. polydextrose, alternan, glycogen; (alpha-1,4)(alpha-1,6)-D-Glucans; (alpha-1,3)(alpha-1,4)-D-Glucans, e.g. isolichenan or nigeran; (alpha-1,4)-D-Glucans; (alpha-1,3)-D-Glucans, e.g. pseudonigeran; Derivatives thereof
    • C08B37/0021—Dextran, i.e. (alpha-1,4)-D-glucan; Derivatives thereof, e.g. Sephadex, i.e. crosslinked dextran

Abstract

675,085. Medicines. AKTIEBOLAGET PHARMACIA. Aug. 31, 1949 [Oct. 14, 1948], No. 12649/51. Divided out of 675,025. Class 81 (i). [Also in Group V] A pharmaceutical dextran product is prepared by subjecting dextran to a degradation by the action of alkaline substances, and interrupting the treatment at a point where a 4 per cent aqueous solution of the products shows a viscosity between 1.2 and 15 relative to water. According to an example an aqueous solution of crude dextran containing sodium hydroxide is maintained at a temperature of 90‹ C. until samples precipitated by means of alcohol and redissolved in water show the desired viscosity. The products may be used in ointments, as a plasma substitute or in solutions used for kidney or other function-tests.
GB12649/51A 1948-10-14 1949-08-31 Process for producing dextran products for pharmaceutical and therapeutical preparations Expired GB675085A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE675085X 1948-10-14

Publications (1)

Publication Number Publication Date
GB675085A true GB675085A (en) 1952-07-02

Family

ID=20314738

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12649/51A Expired GB675085A (en) 1948-10-14 1949-08-31 Process for producing dextran products for pharmaceutical and therapeutical preparations

Country Status (1)

Country Link
GB (1) GB675085A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2765244A (en) * 1951-03-19 1956-10-02 Dextran Ltd Process for degrading dextran in the presence of a reducing agent

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2765244A (en) * 1951-03-19 1956-10-02 Dextran Ltd Process for degrading dextran in the presence of a reducing agent

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