Odowell has been producing (1R,3R,4S)-(-)-MENTHOL for many years and is one of the professional (1R,3R,4S)-(-)-MENTHOL manufacturers and suppliers in China. Customers are satisfied with our products and excellent service. If you are interested in our products, we will give you a satisfactory price and provide price list. We sincerely welcome new and old customers to visit our factory for consultation and negotiation.