Appearance

White or yellowish-white, hygroscopic powder

Infrared Spectrum

Corresponding to Reference   Spectrum

Appearance of Solution

Clear and not more intensely   colored than         reference solution   BY7

Specific optical rotation

+49.0 – +54.0

18α-glycyrrhizic acid

NMT 10.0%

Impurity A

NMT 5.0%

Any   other impurity

NMT 2.0%

Sum or   other impurities

NMT 7.0%

Heavy   Metals

NMT 20ppm

Water

NMT 6.0%

Sulphated   ash

NMT 0.2%

Residual   ethanol

NMT 0.5%

Assay                   (ammonium glycyrrhizate)

From 98.0% to   102.0%(anhydrous substance)

Standard

Comply with EP Standard