... with ethanol, chloroform or ether at random. Peppermint, one of the largest spice plants, is cultivated in China. Menthol crystal ... and other industries.Peppermint oil has high internal quality. The ratio of menthol and different menthol is more than 2, and ... ethanol:PASSTotal menthol content:50% minStandard:Accord with the Chinese Pharmacopeia 2000 Edition,USP25 , FCC VI pls contact our sales ...