Glucosamine sulfate metal chloride compositions and process of p

Details Glucosamine sulfate metal chloride compositions and process of p Glucosamine sulfate metal chloride compositions and process of p

1998-11-13

1999-05-11

Wilson, James O.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Carbohydrate doai

536 187, 536 552, 536 553, 536 172, 514 23, 514 62, C07H5/06

Patent

active

059028017

ABSTRACT:
Glucosamine compositions comprising the compounds glucosamine sulfate metal chloride, wherein the metal, i.e. the cation, is lithium, sodium, magnesium, zinc or manganese. The compounds have purity levels of at least about 97%, with water present in a maximum amount of about 10 wt. %, based on the weight of the composition. The compounds are prepared by contacting glucosamine hydrochloride with the metal sulfate in the presence of water to form an aqueous solution of glucosamine sulfate metal chloride and thereafter freeze-drying the solution at a temperature and at a reduced pressure for such period of time that at least about 90 wt. % of the water is removed and decomposition of the compound glucosamine sulfate metal chloride is limited to a maximum of about 3%.

REFERENCES:
patent: 3683076 (1972-08-01), Rovati
patent: 4642340 (1987-02-01), Senin et al.
patent: 5663415 (1997-09-01), Chopdekar et al.

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