Definition. - It should contain not less than 98 per cent. of pure ammonium valerate, C4H9COONH4.

Origin. - Obtained by saturating valerianic acid with gaseous ammonia and crystallizing.

Description and Properties. - Colorless or white quadrangular plates, emitting the odor of valerianic acid; of a sharp and sweetish taste; deliquescent in moist air. Very soluble in water and in alcohol. Ammonium valerianate should be kept in well-stoppered bottles.

Dose. - 2-10 grains (0.12-6 Gm.), [7 1/2 grains (5 Gm.) U. S. P.].