Packaging and storage— Preserve in tight,light-resistant containers,and avoid exposure to direct sunlight and to excessive heat.

Labeling— Label it to indicate that it is flammable.

Specific gravity á841ñ: between 0.870and 0.885.

Limit of nonvolatile residue— Evaporate 3mLof Tincture in a suitable tared dish on a steam bath,and dry the residue at 100for 2hours:the weight of the residue is between 525mg and 675mg.

Alcohol content,Method IIá611ñ: between 74.0%and 80.0%of C2H5OH,the dilution to approximately 2%alcohol being made with methanol instead of with water.

Expert Committee:(PA6)Pharmaceutical Analysis 6

USP28–NF23Page 235

Phone Number:1-301-816-8389