C10H12O 148.21

Benzene,1-methoxy-4-(1-propenyl)-,(E)-.
(E)-p-Propenylanisole [4180-23-8].

Synthetic [104-46-1].

Packaging and storage— Preserve in tight,light-resistant containers.

Labeling— Label it to indicate whether it is obtained from natural sources or is prepared synthetically.

Specific gravity á841ñ: between 0.983and 0.988.

Congealing temperature á651ñ: not lower than 20.

Distilling range,Method Iá721ñ: between 231and 237,a correction factor of 0.063per mm being applied as necessary.

Angular rotation á781Añ: between -0.15and +0.15.

Refractive index á831ñ: between 1.557and 1.561.

Heavy metals,Method IIá231ñ: 20µg per g.

Aldehydes and ketones— Shake 10mLwith 50mLof a saturated solution of sodium bisulfite in a graduated cylinder,and allow the mixture to stand for 6hours:no appreciable diminution in the volume of Anethole occurs,and no crystalline deposit separates.

Limit of phenols— Shake 1mLwith 20mLof water,and allow the liquids to separate.Pass the water layer through a filter paper previously moistened with water,and to 10mLof the filtrate add 3drops of ferric chloride TS:no purple or purplish color is produced.

Organic volatile impurities,Method Vá467ñ: meets the requirements.

Expert Committee:(EMC)Excipients:Monograph Content

USP28–NF23Page 2958

Phone Number:1-301-816-8262