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Title: Interaction of theobromine with sodium benzoate

Journal Article · · J. Pharm. Sci.; (United States)

The interaction of theobromine with sodium benzoate was investigated by PMR spectroscopy. The interaction of theobromine with pentadeuterated benzoic acid (benzoic acid-d5) was examined in the same manner but to a lesser degree. Chemical shifts of theobromine protons were determined as a function of sodium benzoate concentration in deuterium oxide at 30 and 15 degrees. Signals of both methyl groups of theobromine underwent significant upfield shifts when sodium benzoate was added to a theobromine solution. This fact suggests that a complex is formed by vertical stacking or plane-to-plane stacking. The same results were obtained for benzoic acid-d5.

Research Organization:
Kobe Women's College of Pharmacy, Japan
OSTI ID:
6782189
Journal Information:
J. Pharm. Sci.; (United States), Vol. 71:3
Country of Publication:
United States
Language:
English