Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1974-09-03
1976-03-30
Thomas, Jr., James O.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
C07C 9100
Patent
active
039474917
ABSTRACT:
Choline salicylate sulfite and choline salicylate alkali metal sulfite-containing compounds of the formula, ##SPC1##
Wherein Me represents the sodium, potassium or lithium ion and R represents the sulfite, bisulfite, metabisulfite, dithionate, hydrosulfite and hyposulfite groups are described. Said compounds are stable and inhibit the formation of color in pharmaceutical preparations containing the same. The method for the preparation of choline salicylate sulfite and choline salicylate alkali metal sulfite-containing compounds, and pharmaceutical dosage forms containing the same are disclosed together with a method for their use to inhibit color formation.
REFERENCES:
patent: 3069321 (1962-12-01), Kahn et al.
patent: 3326760 (1967-06-01), Halpern et al.
Halpern Alfred
Kelly, deceased William
Kelly, representative by John
Kelly, representative by Monica
Chan Nicky
The Purdue Frederick Company
Thomas, Jr. James O.
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