The preparation of anisaldehyde by ozonolysis reaction from anethole was studied.

以茴香脑为原料,乙酸和环己合物做剂,臭氧法备茴香醛。

The oil contains not less than 60.0 per cent of anethole and not less than 15.0 per cent of fenchone.

油所含茴香脑不得少于60.0%，小茴香酮不得少于15.0%。