ABSTRACT
Cedarwood oil, China, is the essential oil obtained from the wood of the Chinese weeping cypress, Cupressus funebris. The general source of Chinese cedarwood oil is from stumps after logging. Workers dig the stumps, cut off the cortex, and distill the heartwood. Chinese cedarwood oil and wood are used to prepare incense in China. In medicine, specially thickened varieties of cedarwood oils are used as immersion oil and for clarification in microscopy, because they have the same refraction index as glass. Cedarwood oil China is an almost colorless to light yellow, clear mobile liquid which has a smoky, crude woody odor. The yield of essential oil from the wood of Cupressus funebris Endl. generally varies from 1.7 to 3.4%. The main producing country of this oil is China. Possible contact allergy to cedarwood oil, China, has been reported in two publications, where patients were tested with a mixture of cedarwood oil, Morocco and Chinese cedarwood oil.
