Procedure for the purification of hyaluronic acid and fraction o

Details Procedure for the purification of hyaluronic acid and fraction o Procedure for the purification of hyaluronic acid and fraction o

1995-05-11

1996-09-24

Kunz, Gary L.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Carbohydrate doai

514 62, 514912, 536 53, 536 55, 536 551, 536 552, 536 553, A61K 31725, C08B 3708

Patent

active

055591043

ABSTRACT:
A highly pure fraction of hyaluronic acid is disclosed which is non-inflammatory and avoids post-operative complications in ocular surgery. Also disclosed is a process for the preparation of hyaluronic acid characterized by converting hyaluronic acid into a corresponding quaternary ammonium salt and, following purification procedures, reconverting the quaternary ammonium salt into a sodium salt of hyaluronic acid.

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